Add BLS batch w1

.gitattributes

@@ -58,3 +58,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 # Video files - compressed
 *.mp4 filter=lfs diff=lfs merge=lfs -text
 *.webm filter=lfs diff=lfs merge=lfs -text
+bls/cb/cb.series filter=lfs diff=lfs merge=lfs -text

bls/ap/README.md

@@ -0,0 +1,21 @@
+# BLS survey `ap`
+
+Source: U.S. Bureau of Labor Statistics, LABSTAT time-series database (https://download.bls.gov/pub/time.series/ap/). Public domain U.S. government data. Credit: U.S. Bureau of Labor Statistics.
+
+Survey documentation: `ap.txt`.
+
+`*_series.parquet` defines each series_id (labels); `*_data_*.parquet` holds series_id, year, period (M01-M12 monthly, Q0x quarterly, A01/M13 annual), value, footnote_codes; other files map codes to labels.
+
+| file | rows | columns |
+|---|---|---|
+| ap.area | 74 | area_code, area_name |
+| ap.contacts | 16 | Consumer Price Indexes Contacts |
+| ap.data.0.Current | 213718 | series_id, year, period, value, footnote_codes |
+| ap.data.1.HouseholdFuels | 106978 | series_id, year, period, value, footnote_codes |
+| ap.data.2.Gasoline | 99524 | series_id, year, period, value, footnote_codes |
+| ap.data.3.Food | 150051 | series_id, year, period, value, footnote_codes |
+| ap.footnote | 1 | footnote_code, footnote_text |
+| ap.item | 160 | item_code, item_name |
+| ap.period | 13 | period, period_abbr, period_name |
+| ap.seasonal | 2 | seasonal_code, seasonal_text |
+| ap.series | 1483 | series_id, area_code, item_code, series_title, footnote_codes, begin_year, begin_period, end_year, end_period |

bls/ap/ap.txt

@@ -0,0 +1,293 @@
+				Average Price Data (AP)
+					ap.txt
+
+Section Listing
+
+1.  Survey Definition
+2.  FTP files listed in the survey directory
+3.  Time series, series file, data file, & mapping file definitions and relationships
+4.  Series file format and field definitions
+5.  Data file format and field definitions
+6.  Mapping file formats and field definitions
+7.  Data Element Dictionary
+
+===================================================================================
+Section 1
+===================================================================================
+
+The following is a definition of:  Average Price Data (AP)
+
+Survey Description: Average consumer prices are calculated for household
+fuel, motor fuel, and food items from prices collected for the Consumer
+Price Index (CPI). Average prices are best used to measure the price level
+in a particular month, not to measure price change over time. It is more
+appropriate to use CPI index values for the particular item categories to measure
+price change.
+
+Prices, except for electricity, are collected monthly by BLS representatives
+in the 75 urban areas priced for the CPI.  Electricity prices are collected
+for the BLS for the same 75 areas on a monthly basis by the Department of
+Energy using mail questionnaires. All fuel prices include applicable
+Federal, State, and local taxes; prices for natural gas and electricity also
+include fuel and purchased gas adjustments.
+
+Summary Data Available: Average consumer prices for household fuel and
+motor fuel are available for the U.S. city average, 23 urban areas, 4
+regions, 12 region/size class groupings, and 9 divisions.
+
+Average consumer prices for food are available for the U.S. city average, and
+four regions. 
+
+Monthly data are available for up to 6 household fuel categories, 6
+motor fuel categories, and around 100 food categories.
+
+Frequency of Observations: All data are monthly; annual averages are not
+available.
+
+Data Characteristics: Average prices are stored to three decimal places.
+
+Updating Schedule: Updates become available with the monthly release of new data, typically from the 10th to the  14th of the month
+following the reference month.
+====================================================================================
+Section 2
+====================================================================================
+The following Average Price Data files are on the BLS internet in the sub-directory 
+pub/time.series/ap:
+
+	ap.data.0.Current		- All current year-to-date data
+	ap.data.1.HouseholdFuels	- All household fuels data
+	ap.data.2.Gasoline		- All gasoline data
+	ap.data.3.Food			- All food data
+	ap.area				- Area codes		mapping file
+	ap.contacts			- Contacts for ap survey  
+	ap.footnote			- Footnote codes	mapping file
+	ap.item				- Item codes		mapping file
+	ap.period			- Period codes		mapping file
+	ap.series			- All series and their beginning and end Dates
+	ap.txt				- General information
+	
+=================================================================================
+Section 3
+=================================================================================
+The definition of a time series, its relationship to and the interrelationship
+among series, data and mapping files is detailed below:
+
+A time series refers to a set of data observed over an extended period of time
+over consistent time intervals (i.e. monthly, quarterly, semi-annually, annually).  
+BLS time series data are typically produced at monthly intervals and represent data 
+ranging from a specific consumer item in a specific geographical area whose price 
+is gathered monthly to a category of worker in a specific industry whose employment
+rate is being recorded monthly, etc.
+
+The FTP files are organized such that data users are provided with the following
+set of files to use in their efforts to interpret data files:
+
+a)  a series file (only one series file per survey)
+b)  mapping files
+c)  data files
+
+The series file contains a set of codes which, together, compose a series 
+identification code that serves to uniquely identify a single time series.  
+Additionally, the series file also contains the following series-level information:
+
+a) the period and year corresponding to the first data observation 
+b) the period and year corresponding to the most recent data observation 
+
+The mapping files are definition files that contain explanatory text descriptions
+that correspond to each of the various codes contained within each series
+identification code.
+
+The data file contains one line of data for each observation period pertaining to a
+specific time series.  Each line contains a reference to the following:
+
+a) a series identification code
+b) year in which data is observed
+c) period for which data is observed (M13, Q05, and S03 indicate annual averages)
+d) value
+e) footnote code (if available)
+=================================================================================
+Section 4
+=================================================================================
+File Structure and Format: The following represents the file format used to define
+ap.series.  Note the Field Numbers are for reference only; they do not exist in the
+database.  Data files are in ASCII text format.  Data elements are separated by 
+spaces; the first record of each file contains the column headers for the data 
+elements stored in each field.  Each record ends with a new line character. 
+
+Field #/Data Element	Length		Value(Example)		
+
+1.  series_id		  17		APU0000701111
+
+2.  area_code		   4		S100
+
+3.  item_code		   7		712211
+
+4.  begin_year		   4		1980
+
+5.  begin_period	   3		M01		
+				
+6.  end_year		   4		2002		
+
+7.  end_period		   3		M02	
+					
+
+The series_id (APU0000701111) can be broken out into:
+
+Code					Value(Example)
+
+survey abbreviation	=		AP
+seasonal(code)		=		U
+area_code		=		0000
+item_code		=		701111
+==================================================================================
+Section 5
+==================================================================================
+File Structure and Format: The following represents the file format used to define
+each data file. Note that the field numbers are for reference only; they do not 
+exist in the database.  Data files are in ASCII text format. Data elements are 
+separated by spaces; the first record of each file contains the column headers for 
+the data elements stored in each field. Each record ends with a new line character.  
+
+The ap.data file is partitioned into four separate files:  
+
+	1.  ap.data.0.Current		= All current year-to-date data
+	2.  ap.data.1.HouseholdFuels	= All household fuel (fuel oil,
+					  utility gas, electricity) data
+	3.  ap.data.2.Gasoline		= All gasoline data
+	4.  ap.data.3.Food		= All food data
+
+Both of the above data files have the following format:
+
+Field #/Data Element	Length		Value(Example)		
+
+1. series_id		  17		APU0000701111
+
+2. year			   4		1980	
+
+3. period		   3		M01		
+
+4. value		  12      	0.238	
+				 
+
+5. footnote_codes	  10		It varies
+				
+
+The series_id (APU0000701111) can be broken out into:
+
+Code					Value(Example)
+
+survey abbreviation	=		AP
+seasonal(code)		=		U
+area_code		=		0000
+item_code		=		701111
+============================================================================
+Section 6
+============================================================================
+File Structure and Format: The following represents the file format used to define
+each mapping file. Note that the field numbers are for reference only; they do not
+exist in the database. Mapping files are in ASCII text format. Data elements are
+separated by tabs; the first record of each file contains the column headers for the
+data elements stored in each field. Each record ends with a new line character. 
+
+File Name:  ap.area
+
+Field #/Data Element		Length		Value(Example)
+
+1. area_code			4		A100
+
+2. area_name			80		Text
+
+
+File Name:  ap.footnote
+
+Field #/Data Element		Length		Value(Example)
+
+1. footnote_code		1		C
+
+2. footnote_text		100		Text
+
+
+File Name:  ap.item
+
+Field #/Data Element		Length		Value(Example)
+
+1. item_code			7		712211
+
+2. item_name			100		Text
+
+
+File Name:  ap.period
+
+Field #/Data Element		Length		Value(Example)
+
+1. period			3		M01
+
+2. period_abbr			5		JAN
+
+3. period_name			20		Text
+==============================================================================
+Section 7
+==============================================================================
+
+AVERAGE PRICE DATA (AP) DATABASE ELEMENTS
+
+
+Data Element	Length		Value(Example)			Description
+
+area_code	4		A100			Unique code used to identify
+							a specific geographic area.
+
+area_name	80		Text			Name of specific geographic
+				Ex: MIAMI, FLA		area.
+				
+begin_period	3		M02			Identifies first data observation
+				Ex: M02=Feb		within the first year for which
+				(M=Monthly, M13= 	data is available for a given time
+				Annual Avg)		series.					
+						
+begin_year	4		1990			Identifies first year for which
+ 							data is available for a given time
+							series.
+						
+end_period	3		M06			Identifies last data observation 
+ 				Ex: M06=June		within the last year for which
+				(M=Monthly, M13=	data is available for a given time
+				Annual Avg)		series.
+						
+end_year	4		2000			Identifies last year for which data
+ 							is available for a given time
+							series.
+							
+footnote_code	1		C			Identifies footnote for the data 
+							series.
+
+footnote_codes	10		It varies		Identifies footnotes for the data 
+							series.	
+							
+footnote_text	100		Text			Contains the text of the footnote.
+
+item_code	7		712211			Identifies item for which
+ 							data observations pertain.
+
+item_name	100		Text			Full names of items.
+					
+period_abbr	5		JAN			Abbreviation of period name.
+ 					
+period		3		M01			Identifies period for which data 
+ 				Ex: M01=Jan		is observed.
+				(M=Monthly, M13=	
+				Annual Avg)
+ 				
+period_name	20		Text			Full name of period to which
+ 				Ex: January		the data observation refers.
+				
+
+series_id	17		APU0000701111		Code identifying the specific 
+ 							series.
+
+value		12		10.124			Average price of item.
+	    
+year		4		1990			Identifies year of observation.        	
+				
+
+

bls/ap/ap_area.parquet

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+size 3121

bls/ap/ap_contacts.parquet

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bls/ap/ap_data_0_Current.parquet

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bls/ap/ap_data_1_HouseholdFuels.parquet

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+size 363474

bls/ap/ap_data_2_Gasoline.parquet

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+size 189241

bls/ap/ap_data_3_Food.parquet

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bls/ap/ap_footnote.parquet

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+size 2017

bls/ap/ap_item.parquet

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bls/ap/ap_period.parquet

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bls/ap/ap_seasonal.parquet

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bls/ap/ap_series.parquet

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bls/bd/README.md

@@ -0,0 +1,27 @@
+# BLS survey `bd`
+
+Source: U.S. Bureau of Labor Statistics, LABSTAT time-series database (https://download.bls.gov/pub/time.series/bd/). Public domain U.S. government data. Credit: U.S. Bureau of Labor Statistics.
+
+Survey documentation: `bd.txt`.
+
+`*_series.parquet` defines each series_id (labels); `*_data_*.parquet` holds series_id, year, period (M01-M12 monthly, Q0x quarterly, A01/M13 annual), value, footnote_codes; other files map codes to labels.
+
+| file | rows | columns |
+|---|---|---|
+| bd.contacts | 2 | Business Employment Dynamics Program Contacts |
+| bd.county | 1 | county_code, county_name |
+| bd.data.0.Current | 3584256 | series_id, year, period, value, footnote_codes |
+| bd.data.1.AllItems | 4598544 | series_id, year, period, value, footnote_codes |
+| bd.dataclass | 8 | dataclass_code, dataclass_name, display_level, selectable, sort_sequence |
+| bd.dataelement | 2 | dataelement_code, dataelement_name |
+| bd.footnote | 2 | footnote_code, footnote_text |
+| bd.industry | 91 | industry_code, industry_name, display_level, selectable, sort_sequence |
+| bd.msa | 1 | msa_code, msa_name |
+| bd.ownership | 1 | ownership_code, ownership_name |
+| bd.periodicity | 2 | periodicity_code, periodicity_name |
+| bd.ratelevel | 2 | ratelevel_code, ratelevel_name |
+| bd.seasonal | 2 | seasonal_code, seasonal_text |
+| bd.series | 34464 | series_id, seasonal, msa_code, state_code, county_code, industry_code, unitanalysis_code, dataelement_code, sizeclass_code, dataclass_code, ratelevel_code, periodicity_code, ownership_code, series_title, footnote_codes, begin_year, begin_period, end_year, end_period |
+| bd.sizeclass | 32 | sizeclass_code, sizeclass_name |
+| bd.state | 54 | state_code, state_name |
+| bd.unitanalysis | 1 | unitanalysis_code, unitanalysis_name |

bls/bd/bd.txt

@@ -0,0 +1,465 @@
+Business Employment Dynamics (BD)
+				     bd.txt
+
+Section Listing
+
+1. Database Definition
+2. FTP files listed in the database directory.
+3. Time series, series file, data file, & mapping file definitions and relationships
+4. Series file format and field definitions
+5. Data file format and field definitions
+6. Mapping file formats and field definitions
+7. Data Element Dictionary
+
+
+================================================================================
+Section 1
+================================================================================
+
+The following is a definition of:  BUSINESS EMPLOYMENT DYNAMICS
+
+Program Description:  Business Employment Dynamics statistics track changes
+in employment at the establishment level, revealing the dynamics underlying net
+changes in employment.
+
+Summary Data Available: Quarterly data on Business Employment Dynamics are
+derived from the Quarterly Census of Employment and Wages program.
+This program is the quarterly census of all establishments under State
+unemployment insurance programs, representing about 98 percent of employment on
+nonfarm payrolls.  The data include all establishments subject to the State
+unemployment insurance (UI) laws and Federal agencies subject to the
+Unemployment Compensation for Federal Employees (UCFE) program.  Major
+exclusions from UI coverage are the self-employed workers, religious
+organizations, most agricultural workers on small farms, members of the Armed
+Forces and certain small nonprofit organizations.
+
+The Business Employment Dynamics totals require that establishment data be
+linked across quarters.  This longitudinal aspect of the data allows the
+tracking of when establishments open, close, and expand or contract their
+employees.  There are four types of job flows: employment gains at opening
+establishments, employment expansions at existing establishments, employment
+losses at closing establishments, and employment contractions at existing
+establishments.  Increases in employment at opening and expanding
+establishments sum to measure job gains.  Declines in employment at closing and
+contracting establishments sum to measure job losses. The more traditional
+measure of a net change in the employment is the difference between the number
+of jobs gained and the number of jobs lost. Data on establishment births and
+deaths are also available. Establishment births are a subset of openings,
+whereas establishment deaths are a subset of closings. These additional data
+categories remove seasonal and temporary openings and closings from the entire
+sets of those two series.
+
+Currently, job flow estimates are available as levels and as rates for the
+private sector, 2 and 3 digit NAICS sectors, total private and 2-digit NAICS
+sector by state, total private by size of employment change, and firm level
+size class data.  The rates measure gross job gains and losses and their
+components as a percentage of the average of the previous and current quarter
+employment. Business Employment Dynamics statistics cover the period from
+September 1992 to the most recent quarter available.  Estimates are available
+with and without seasonal adjustments.  Seasonal adjustment is run concurrently
+and models are updated annually.
+
+Special characteristics of the data are footnoted where necessary.
+
+Updating Schedule:  Business Employment Dynamics are updated quarterly and will
+be available about six months after the end of the reference quarter. Reference
+quarters end in March, June, September, and December.
+
+==================================================================================
+Section 2
+==================================================================================
+
+The following Employment, Hours, and Earnings--National files are on the BLS 
+internet in the sub-directory pub/time.series/bd:
+
+       	
+	bd.contacts			  -  Contacts for bd data
+	bd.county			  -  County codes		mapping file 
+	bd.data.0.Current		  -  All current year-to-date data
+	bd.data.1.AllItems		  -  All items
+	bd.dataclass			  -  Data class codes		mapping file
+	bd.dataelement			  -  Data element codes		mapping file
+	bd.footnote			  -  Footnote codes
+	bd.industry			  -  Industry codes		mapping file
+	bd.msa				  -  MSA codes			mapping file
+	bd.ownership			  -  Ownership codes		mapping file
+	bd.periodicity			  -  Periodicity codes		mapping file
+	bd.ratelevel			  -  Rate level codes 		mapping file
+	bd.seasonal			  -  Seasonal adjustment code	mapping file
+	bd.series			  -  All series and their beginning and end dates
+	bd.sizeclass			  -  Sizeclass codes		mapping file
+	bd.state			  -  State codes		mapping file
+	bd.txt				  -  General information
+	bd.unitanalysis			  -  Unitanalysis codes		mapping file
+	
+	
+=================================================================================
+Section 3
+=================================================================================
+The definition of a time series, its relationship to and the interrelationship
+among series, data and mapping files is detailed below:
+
+A time series refers to a set of data observed over an extended period of time
+over consistent time intervals (i.e. monthly, quarterly, semi-annually, annually).  
+BLS time series data are typically produced at monthly intervals and represent data 
+ranging from a specific consumer item in a specific geographical area whose price 
+is gathered monthly to a category of worker in a specific industry whose employment
+rate is being recorded monthly, etc.
+
+The FTP files are organized such that data users are provided with the following
+set of files to use in their efforts to interpret data files:
+
+a)  a series file (only one series file per data)
+b)  mapping files
+c)  data files
+
+The series file contains a set of codes which, together, compose a series 
+identification code that serves to uniquely identify a single time series.  
+Additionally, the series file also contains the following series-level information:
+
+a) the period and year corresponding to the first data observation 
+b) the period and year corresponding to the most recent data observation. 
+
+The mapping files are definition files that contain explanatory text descriptions
+that correspond to each of the various codes contained within each series
+identification code.
+
+The data file contains one line of data for each observation period pertaining to a
+specific time series.  Each line contains a reference to the following:
+
+a) a series identification code
+b) year in which data is observed
+c) period for which data is observed (M13, Q05, and S03 indicate annual averages)
+d) value
+e) footnote code (if available)
+
+=================================================================================
+Section 4
+=================================================================================
+File Structure and Format: The following represents the file format used to define 
+bd.series.  Note that the Field Numbers are for reference only; they do not exist 
+in the database.  Data files are in ASCII text format.  Data elements are separated 
+by spaces; the first record of each file contains the column headers for the data
+elements stored in each field.  Each record ends with a new line character. 
+
+Field #/Data Element	Length		Value(Example)		
+
+1.  series_id		  30		BDS0000006000200090110004LQ5   (NOTE: last two characters are intentionally left blank)
+
+2.  seasonal	   	  1		S or U (S=seasonally adjusted, U=Not seasonally adjusted)
+
+3.  msa_code		  5		00000 (Currently Business Employment Dynamics does not produce data at MSA level)
+
+4.  state_code	   	  2		00 (This is for U.S. totals - state data based on FIPs code)
+
+5.  county_code		  3		000 (Currently Business Employment Dynamics does not produce data at county level)
+
+6.  industry_code	  6		000000 (See bd.industry for industry mapping file, NOTE: State data only available at 2-digit NAICS, National at 2 or 3 digit NAICS)
+
+7.  unitanalysis_code	  1		1 (Used for both establishment and firm size class data series)
+
+8.  dataelement_code	  1		1 or 2 (1=Employment change level, 2=Number of establishments)
+
+9.  sizeclass_code	  2		01 (00 is for establishment level by industry and/or state, 01 - 09 is for firm size class, >=10 is for establishment data by size of employment change)
+
+10. dataclass_code	  2		01 (ranges from 01-08, with 07 being establishment births and 08 establishment deaths)
+
+11. ratelevel_code	  1		L or R (L=level, R=rate)
+
+12. periodicity_code	  1		Q or A (Q=quarterly, A=annual NOTE: not all data are available for annual series)
+
+13. ownership_code	  1		5 (Private sector only)
+
+14. series_title	256		It varies		
+
+15. footnote_codes       10		It varies
+
+16. begin_year		  4		1992
+
+17. begin_period	  3		Q03			
+				
+18. end_year		  4		2021 (As of last update to this file)
+
+19. end_period		  3		Q04  (As of last update to this file)
+		
+					
+The series_id (BDS0000006000200090110004LQ5) can be broken out into:
+
+Code					Value
+
+data abbreviation	=		BD
+seasonal (code) 	=		S
+msa_code		=		00000
+state_code		=		06
+county_code		=		000
+industry_code		=		200090
+unitanalysis_code	=		1
+dataelement_code	=		1
+sizeclass_code		=		00
+dataclass_code	  	=		04
+ratelevel_code		=		L
+periodicity_code	=		Q
+ownership_code		=		5
+
+==================================================================================
+Section 5
+==================================================================================
+File Structure and Format: The following represents the file format used to define
+each data file.  Note that the field numbers are for reference only; they do not 
+exist in the database.  Data files are in ASCII text format.  Data elements are 
+separated by spaces; the first record of each file contains the column headers for 
+the data elements stored in each field.  Each record ends with a new line character.  
+
+The bd.data file is partitioned into a number of separate files:  See Section 2
+
+The above-referenced data files have the following format:
+
+Field #/Data Element	Length		Value(Example)		
+
+1. series_id		  30		BDS0000006000200090110004LQ5
+
+2. year			   4		2020	
+
+3. period		   3		Q02		
+
+4. value		  12      	821741	 	
+				 
+5. footnote_codes	  10		It varies
+				
+
+================================================================================
+Section 6
+================================================================================
+File Structure and Format:  The following represents the file format used to define
+each mapping file. Note that the field numbers are for reference only; they do not
+exist in the database.  Mapping files are in ASCII text format.  Data elements are
+separated by tabs; the first record of each file contains the column headers for the
+data elements stored in each field.  Each record ends with a new line character.  
+				
+
+File Name:  bd.county
+
+Field #/Data Element		Length		Value(Example)
+
+1.  county_code			3		000
+
+2.  county_name			100		National
+
+
+
+File Name:  bd.dataclass
+
+Field #/Data Element		Length		Value(Example)
+
+1.  dataclass_code		2		07
+
+2.  dataclass_name		60		Establishment Births
+
+		
+
+File Name:  bd.dataelement
+
+Field #/Data Element		Length		Value(Example)
+
+1.  dataelement_code		1		2
+						
+2.  dataelement_name 		80		Number of Establishments (NOTE: Firm size class data does not include counts of the number of firms for any data class. This is because of the dynamic sizing methodology used to construct the series.)
+
+
+
+File Name:  bd.industry
+
+Field #/Data Element		Length		Value(Example)
+
+1.  industry_code		6		200090
+						
+2.  industry_name 		100		Leisure and hospitality (NOTE: For 3-digit NAICS national data the code is 300 followed by the 3-digit NAICS code - EX: 300721 = Accommodation)
+
+
+
+File Name:  bd.msa
+
+Field #/Data Element		Length		Value(Example)
+
+1.  msa_code			5		00000
+						
+2.  msa_name 			100		National
+
+
+
+File Name:  bd.ownership
+
+Field #/Data Element		Length		Value(Example)
+
+1.  ownership_code		1		5
+						
+2.  ownership_name 		30		Private Sector
+
+
+
+File Name:  bd.periodicity
+
+Field #/Data Element		Length		Value(Example)
+
+1.  periodicity_code		1		Q
+						
+2.  periodicity_name 		30		Quarterly (Annual data are available for U.S. totals at the 2-digit NAICS sector level and for each state at the Total private level. These values can be downloaded for each quarter (i.e. March to March, June to June, etc.), however the supplemental tables and charts are only updated once a year for the March to March time period.
+
+
+
+File Name:  bd.ratelevel
+
+Field #/Data Element		Length		Value(Example)
+
+1.  ratelevel_code		1		L
+
+2.  ratelevel_name 		30		Level (Rates are calculated using the value of the component for a given series as the numerator and the average of the current and prior quarter levels (either employment or establishment counts) as the denominator. The BD program does not produce data for levels, but those data can be obtained at www.bls.gov/cew
+
+
+
+File Name:  bd.sizeclass
+
+Field #/Data Element		Length		Value(Example)
+
+1.  sizeclass_code 		2		00
+						
+2.  sizeclass_name 		100		All size classes (00 is for industry and/or state data, 01 to 09 is for firm size class, >=10 is for establishment level by size of employment change)
+
+
+
+File Name:  bd.state
+
+Field #/Data Element		Length		Value(Example)
+
+1. state_code			2		06
+
+2. state_name			30		California
+
+
+
+File Name:  bd.unitanalysis
+
+Field #/Data Element		Length		Value(Example)
+
+1. unitanalysis_code		1		1
+
+2. unitanalysis_name		30		Establishment
+
+
+
+=========================================================================================
+Section 7
+=========================================================================================
+BUSINESS EMPLOYMENT DYNAMICS(BD) DATABASE ELEMENTS
+
+Data Element	Length		Value(Example)			Description
+
+begin_period	3		M01-M13			Identifies first data observation
+				Q01-Q05			within the first year for which
+				Ex: M06=June		data are available for a given
+				(M=Monthly, M13=Annual	time series.
+				Avg, Q=Quarterly, Q05=
+				Annual Avg)
+
+begin_year	4		YYYY			Identifies first year for which 
+				Ex: 1992		data are available for a given
+							time series.
+
+county_code	3		000			Code identifying the county of the 
+							observation.
+
+county_name	100		Text			County name of the observation.
+				Ex. National
+
+dataclass_code	2		02			Code identifying the data class 
+							of the observation.
+
+dataclass_name	60		Text			Data class name of the observation.
+				Ex: Expansions 	
+				
+dataelement_code	1	1			Code identifying the data element 
+							of the observation.
+
+dataelement_name	80	Text			Data element name of the observation.
+				Ex: Employment  	
+				
+end_period	3		M01-M13			Identifies last data observation
+				Q01-Q04			within the last year for which
+				Ex: M06=June		data are available for a given
+				(M=Monthly, M13=Annual	time series.
+				Avg, Q=Quarterly, Q05=
+				Annual Avg)
+				
+end_year	4		YYYY			Identifies last year for which 
+				Ex: 2020		data are available for a given
+							time series.
+							
+footnote_codes	10		It varies		Identifies footnotes for the data 
+							series.	
+							
+industry_code	6		000000			Code identifying industry.
+							
+industry_name	100		Text			Name of industry.
+				Ex: Grocery Stores
+
+msa_code	5		00000			Code identifying the msa's for the data 
+							observation.
+
+msa_name	100		Text			MSA name of the observation.
+				Ex. National
+
+ownership_code	1		5			Code identifying ownership of the data 
+							observation.
+
+ownership_name	30		Text			Ownership name of the observation.
+				Ex.Private Sector
+
+period		3		M01-M13			Identifies period for which
+				Q01-Q04			data is observed. 
+				Ex: M06=June		
+				(M=Monthly, M13=Annual
+				Avg, Q=Quarterly, Q05=
+				Annual Avg)
+
+periodicity_code 1		Q			Code identifying the periodicity of the
+							data observation.
+
+periodicity_name 30		Text			Periodicity name of the observation.
+				Ex. Quarterly
+
+ratelevel_code	1		Ex: L			Code identifying the rate level 
+							of the observation.
+
+ratelevel_name	30		Text			Description of rate level. 
+				Ex: Level  
+
+seasonal	1		S=Seasonally		Code identifying whether the
+				  Adjusted 		data are seasonally adjusted.
+				U=Unadjusted
+
+series_id	30		BDS0000006000200090110004LQ5  	Code identifying the specific 
+								series.
+
+sizeclass_code	2		01, 13			Code identifying size class of the data
+							observation (00 is for industry and/or state data, 01 to 09 is for firm size class, >=10 is for establishment level by size of employment change).
+
+sizeclass_name	100		Text			Description of size class.
+				Ex. 1 to 4 employees, 4 jobs (indicating an establishment either gained or lost 4 jobs from the prior quarter)
+							
+state_code	2		00			Code identifying the state that the
+							observation belongs to.
+
+state_name	30		Text			State name of the observation.
+				Ex. National
+
+unitanalysis_code 1		1			Code idenifying the unit analysis of the data
+							observation.
+
+unitanalysis_name 30		Text			Unit analysis name of the observation.
+				Ex. Establishment
+
+value		12		103623			Data value for series.
+
+year		4		YYYY			Identifies year of observation.
+				Ex: 2003		
+

bls/bd/bd_contacts.parquet

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bls/bg/README.md

@@ -0,0 +1,20 @@
+# BLS survey `bg`
+
+Source: U.S. Bureau of Labor Statistics, LABSTAT time-series database (https://download.bls.gov/pub/time.series/bg/). Public domain U.S. government data. Credit: U.S. Bureau of Labor Statistics.
+
+Survey documentation: `bg.txt`.
+
+`*_series.parquet` defines each series_id (labels); `*_data_*.parquet` holds series_id, year, period (M01-M12 monthly, Q0x quarterly, A01/M13 annual), value, footnote_codes; other files map codes to labels.
+
+| file | rows | columns |
+|---|---|---|
+| bg.alteration | 5 | BG Alteration |
+| bg.contacts | -1 |  |
+| bg.data.1.AllData | 784 | series_id, year, period, value, cont_break, status, footnote_exists |
+| bg.duration | 1 | All contracts in effect |
+| bg.measure | 23 | BG Measure |
+| bg.period | 5 | period, period_abbr, period_name |
+| bg.sector | 5 | BG Sector |
+| bg.selection | 1 | All contracts in effect in  selected period |
+| bg.series | 25 | series_id, measure_code, unit_code, alteration_code, sector_code, contract_duration, contract_selection, seasonal, begin_year, begin_period, end_year, end_period |
+| bg.unit | 4 | BG Unit |

bls/bg/bg.contacts

@@ -0,0 +1,24 @@
+Collective Bargaining Agreements Contacts
+
+
+Collective Bargaining Agreements File:
+
+Michael Cimini	 	(202) 691-6275		 Cimini_M@bls.gov 
+John Steinmeyer 	(202) 691-6284		 Steinmeyer_J@bls.gov 
+Fehmida Sleemi 		(202) 691-6282		 Sleemi_F@bls.gov 
+Edward Wasilewski 	(202) 691-6288		 Wasilewski_E@bls.gov
+
+Work Stoppages: 
+
+Fehmida Sleemi		(202) 691-6282		 Sleemi_F@bls.gov 
+Michael Cimini		(202) 691-6275		 Cimini_M@bls.gov
+
+
+To Subscribe to or Purchase Copies of Compensation and Working Conditions: 
+
+Send requests to: 
+Superintendent of Documents, Government Printing Office,Washington, DC 20402-0001 
+Telephone: 202-512-2303
+
+******************************************************************************
+

bls/bg/bg.txt

@@ -0,0 +1,393 @@
+	Collective Bargaining Series - State and Local Government (BG)
+				    bg.txt
+
+
+Section Listing
+
+1. Survey Definition
+2. FTP files listed in the survey directory.
+3. Time series, series file, data file, & mapping file definitions and relationships
+4. Series file format and field definitions
+5. Data file format and field definitions
+6. Mapping file formats and field definitions
+7. Data Element Dictionary
+================================================================================
+Section 1
+================================================================================
+
+The following is a definition of:  COLLECTIVE BARGAINING SERIES - 
+				   STATE AND LOCAL GOVERNMENT (BG)
+
+Survey Description:  This series summarizes wage-rate changes in major
+collective bargaining units (those with 1,000 workers or more) in State and
+local governments where:  (1)  A labor organization is recognized as the
+bargaining agent for a group of workers; (2)  the settlements are embodied
+in signed, mutually binding contracts; and (3)  wages are determined by
+collective bargaining.  Wage-rate change data are measured for units of
+1,000 workers or more; compensation measures are compiled for settlements
+of 5,000 workers or more.
+
+Summary Data Available:
+
+Wage Rate Changes:  Two types of information are presented.  "Settlement"
+data measure the net impact of increases, decreases, and no change in wage
+rates as a result of new settlements reached during the reference period.  
+Changes scheduled during the first 12 months after the contract effective 
+date (first-year) and all changes over the contract term expressed as an 
+annual rate (over the life) are presented.  Data on "wage rate changes under
+all major agreements" include increases, decreases, and no change in the 
+reference period stemming from settlements in that period, from earlier 
+settlements with changes deferred to the period, and from COLA adjustments.
+
+Compensation Changes:  These data measure changes (increases, decreases, and
+no change) in employee compensation (wages and benefits) resulting from 
+settlements negotiated in the reference period covering 5,000 workers or 
+more.  Both changes occurring within 12 months of the contract effective 
+date (first year) and all changes that will occur over the contract term 
+expressed as an annual rate (over the life) are presented.  "Compensation 
+changes" measure changes in the costs for employee compensation including 
+specified lump-sum payments and reflects both the size and timing of 
+compensation rate changes.
+
+Frequency of Observations:  Data are presented semiannually and by calendar
+year.
+
+Data Characteristics:  All percent changes are stored with one decimal
+place.  All employment measures are in millions.
+
+Updating Schedule:  Updates are available in February and August.
+
+References:  BLS Handbook of Methods, Chapter 7, "Negotiated Wage and 
+	     Benefit Changes", Bulletin 2285 (1988).
+==================================================================================
+Section 2
+==================================================================================
+The following Collective Bargaining Series (State and Local Government) files are 
+on the BLS internet in the sub-directory pub/time.series/bg:
+
+
+	bg.alteration		- Alteration codes	mapping file
+	bg.contacts		- Contacts for bg survey 
+	bg.data.1.AllData	- All data
+	bg.duration		- Duration codes	mapping file
+	bg.measure		- Measure codes		mapping file
+	bg.period		- Period codes		mapping file
+	bg.sector		- Sector codes		mapping file
+	bg.selection		- Selection codes	mapping file
+	bg.series		- All series and their beginning and end dates
+	bg.txt			- General information
+	bg.unit			- Unit codes		mapping file
+
+=================================================================================
+Section 3
+=================================================================================
+The definition of a time series, its relationship to and the interrelationship
+among series, data and mapping files is detailed below:
+
+A time series refers to a set of data observed over an extended period of time
+over consistent time intervals (i.e. monthly, quarterly, semi-annually, annually).  
+BLS time series data are typically produced at monthly intervals and represent data 
+ranging from a specific consumer item in a specific geographical area whose price 
+is gathered monthly to a category of worker in a specific industry whose employment
+rate is being recorded monthly, etc.
+
+The FTP files are organized such that data users are provided with the following
+set of files to use in their efforts to interpret data files:
+
+a)  a series file (only one series file per survey)
+b)  mapping files
+c)  data files
+
+The series file contains a set of codes which, together, compose a series 
+identification code that serves to uniquely identify a single time series.  
+Additionally, the series file also contains the following series-level information:
+
+a) the period and year corresponding to the first data observation 
+b) the period and year corresponding to the most recent data observation. 
+
+The mapping files are definition files that contain explanatory text descriptions
+that correspond to each of the various codes contained within each series
+identification code.
+
+The data file contains one line of data for each observation period pertaining to a
+specific time series.  Each line contains a reference to the following:
+
+a) a series identification code
+b) year in which data is observed
+c) period for which data is observed (M13, Q05, and S03 indicate annual averages)
+d) value
+e) footnote code (if available)
+=================================================================================
+Section 4
+=================================================================================
+File Structure and Format: The following represents the file format used to define 
+bg.series.  Note that the Field Numbers are for reference only; they do not exist 
+in the database.  Data files are in ASCII text format.  Data elements are separated 
+by tabs; the first record of each file contains the column headers for the data
+elements stored in each field.  Each record ends with a new line character. 
+
+Field #/Data Element	Length		Value(Example)		
+
+1.  series_id		  13		BGU01111001
+
+2.  measure_code	  2		00
+
+3.  unit_code		  1		1
+
+4.  alteration_code	  1		1
+
+5.  sector_code		  1		1
+
+6.  contract_duration	  1		0
+
+7.  contract_selection	  2		00
+
+8.  seasonal		  1		U		
+
+9.  begin_year		  4		1984
+
+10. begin_period	  3		Q02
+
+11. end_year		  4		1995
+
+12. end_period		  3		Q02
+					
+
+
+The series_id (BGU01111001) can be broken out into:
+
+Code					Value(Example)
+
+survey abbreviation	=		BG
+seasonal (code) 	=		U
+measure_code		=		01
+unit_code		=		1
+alteration_code		=		1
+sector_code		=		1
+contract_duration	=		0
+contract_selection	=		01
+==================================================================================
+Section 5
+==================================================================================
+File Structure and Format: The following represents the file format used to define
+each data file.  Note that the field numbers are for reference only; they do not 
+exist in the database.  Data files are in ASCII text format.  Data elements are 
+separated by tabs; the first record of each file contains the column headers for 
+the data elements stored in each field.  Each record ends with a new line character. 
+
+
+File Name:  bg.data.1.AllData
+
+The above-named data file has the following format:
+
+Field #/Data Element	Length		Value(Example)		
+
+1. series_id		  13		BGU01111001 	      	
+
+2. year			   4		1984	
+
+3. period		   3		Q01		
+
+4. value		  12      	3.9	
+
+5. cont_break		   1		N 
+
+6. status		   1 		F	
+				 
+7. footnote_exists	   1		N
+				
+
+The series_id (BGU01111001) can be broken out into:
+
+Code					Value(Example)
+
+survey abbreviation	=		BG
+seasonal (code) 	=		U
+measure_code		=		01
+unit_code		=		1
+alteration_code		=		1
+sector_code		=		1
+contract_duration	=		0
+contract_selection	=		01
+================================================================================
+Section 6
+================================================================================
+File Structure and Format:  The following represents the file format used to define
+each mapping file. Note that the field numbers are for reference only; they do not
+exist in the database.  Mapping files are in ASCII text format.  Data elements are
+separated by tabs; the first record of each file contains the column headers for the
+data elements stored in each field.  Each record ends with a new line character.  
+
+
+File Name:  bg.alteration	
+
+Field #/Data Element		Length		Value(Example)
+
+1. alteration_code		1		1
+	
+2. alteration_text		50		Text
+
+
+File Name:  bg.duration
+
+Field #/Data Element		Length		Value(Example)
+
+1. contract_duration		1		0
+
+2. contract_duration_text	50		Text
+
+
+File Name:  bg.measure
+
+Field #/Data Element		Length		Value(Example)
+
+1. measure_code			2		01
+
+2. measure_text			90		Text
+
+
+File Name:  bg.period
+
+Field #/Data Element		Length		Value(Example)
+
+1. period			3		Q01
+	
+2. period_abbr			5		QTR2
+
+3. period_name			20		Text
+
+
+File Name:  bg.sector
+
+Field #/Data Element		Length		Value(Example)
+
+1. sector_code			1		1
+
+2. sector_name			40		Text
+
+
+File Name:  bg.selection
+
+Field #/Data Element		Length		Value(Example)
+
+1. contract_selection		2		01
+
+2. contract_selection_text	80		Text
+
+
+File Name:  bg.unit
+
+Field #/Data Element		Length		Value(Example)
+
+1. unit_code			1		1
+		
+2. unit_text			20		Text
+
+=========================================================================================
+Section 7
+=========================================================================================
+COLLECTIVE BARGAINING SERIES - STATE AND LOCAL GOVERNMENT (BG)
+			       DATABASE ELEMENTS
+
+
+Data Element	Length		Value(Example)			Description
+
+alteration_code	1		1			Code identifying the type of
+							change measured by the observation.
+						
+alteration_text	50		Text			Description of type of change 
+				Ex: Changes (net 	measured by the observation.
+				increases, and no 	
+				change)
+
+begin_period	3		Q03			Identifies first data observation
+				Ex: Q03=3rd Quarter	within the first year for which
+				(Q=Quarterly, Q05=	data is available for a given
+				 Annual Average)	time series.							
+				
+begin_year	4		1975			Identifies first year for which
+							data is available for a given
+							time series.
+						
+cont_break	1		Y=Continuity break	Identifies point at which data 
+				N=No break		within a series are no longer 
+							comparable.
+
+contract_	1		0			Code identifying the length
+duration						of the contract.
+
+contract_	50		Text			Description of the length of
+duration_text			Ex: All	contracts	contract.
+				
+contract_	2		01			Code identifying the contracts 
+selection						negotiated in the period.
+						
+contract_	80		Text			Description of contracts 
+selection_text			Ex: All contracts	negotiated in the period.
+				negotiated in periods
+
+end_period	3		Q05			Identifies last data observation
+				Ex: Q05=Annual Average	within the last year for which
+				(Q=Quarterly, Q05=	data is available for a given
+				 Annual Average)	time series.
+				
+end_year	4		1980			Identifies last year for which
+							data is available for a given
+							time series.
+						
+footnote_exists	1		N=No footnote		Identifies whether a footnote 
+				Y=Footnote		exists for the data series. 
+							(To see footnote, refer to 
+							publication.)
+
+measure_code	2		01			The measure identifier.
+
+measure_text	90		Text			Name of element being
+				Ex: Settlements, 1st	measured by the observation.
+				compensation.
+				
+period_abbr	5		QTR2			Abbreviation of period name.
+				
+period		3		Q01			Identifies period for which
+ 				Ex: Q01=1st Quarter	data is observed. 
+				(Q=Quarterly, Q05=	
+				 Annual Average)	
+
+period_name	20		Text			Full name of period to which
+			 	Ex: First half 		the data observation refers.
+				 	
+seasonal	1		S=Seasonally		Code identifying whether the
+				  Adjusted		data are seasonally adjusted.
+				U=Unadjusted  	
+
+sector_code	1		1			Code identifying the sector
+							of the economy.
+
+sector_name	40		Text			Name of economic sector to
+				Ex: State and local	which data refer.
+				government
+				
+series_id	13		BGU01111001	 	Code identifying the specific 
+							series.
+
+status		1		F=Final data		Code identifying whether data 
+				P=Premliminary data	are preliminary or final.
+			 	  			
+unit_code	1		1			Code identifying the unit
+							of measurement.
+
+unit_text	20		Text			Name of unit of measurement
+				Ex: Mean (in percents)	for observation.
+					
+value		12		Data value		Observation for the series.
+
+year		4		1990			Identifies year of observation.
+				
+			
+
+	
+
+
+
+
+	

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bls/bp/README.md

@@ -0,0 +1,21 @@
+# BLS survey `bp`
+
+Source: U.S. Bureau of Labor Statistics, LABSTAT time-series database (https://download.bls.gov/pub/time.series/bp/). Public domain U.S. government data. Credit: U.S. Bureau of Labor Statistics.
+
+Survey documentation: `bp.txt`.
+
+`*_series.parquet` defines each series_id (labels); `*_data_*.parquet` holds series_id, year, period (M01-M12 monthly, Q0x quarterly, A01/M13 annual), value, footnote_codes; other files map codes to labels.
+
+| file | rows | columns |
+|---|---|---|
+| bp.alteration | 6 | BP Alteration |
+| bp.contacts | -1 |  |
+| bp.data.1.AllData | 4631 | series_id, year, period, value, cont_break, status, footnote_exists |
+| bp.duration | 1 | All contracts in effect |
+| bp.industry | 9 | BP Industry |
+| bp.measure | 55 | BP Measure |
+| bp.period | 5 | period, period_abbr, period_name |
+| bp.periodicity | 2 | periodicity_code, periodicity_text |
+| bp.selection | 1 | All contracts in effect in selected period |
+| bp.series | 95 | series_id, measure_code, unit_code, periodicity_code, alteration_code, industry_code, contract_duration, contract_selection, seasonal, begin_year, begin_period, end_year, end_period |
+| bp.unit | 4 | BP Unit |

bls/bp/bp.contacts

@@ -0,0 +1,24 @@
+Collective Bargaining Agreements Contacts
+
+
+Collective Bargaining Agreements File:
+
+Michael Cimini	 	(202) 691-6275		 Cimini_M@bls.gov 
+John Steinmeyer 	(202) 691-6284		 Steinmeyer_J@bls.gov 
+Fehmida Sleemi 		(202) 691-6282		 Sleemi_F@bls.gov 
+Edward Wasilewski 	(202) 691-6288		 Wasilewski_E@bls.gov
+
+Work Stoppages: 
+
+Fehmida Sleemi		(202) 691-6282		 Sleemi_F@bls.gov 
+Michael Cimini		(202) 691-6275		 Cimini_M@bls.gov
+
+
+To Subscribe to or Purchase Copies of Compensation and Working Conditions: 
+
+Send requests to: 
+Superintendent of Documents, Government Printing Office,Washington, DC 20402-0001 
+Telephone: 202-512-2303
+
+******************************************************************************
+

bls/bp/bp.txt

@@ -0,0 +1,406 @@
+		Collective Bargaining Series - Private Sector (BP)
+				   bp.txt
+
+
+Section Listing
+
+1. Survey Definition
+2. FTP files listed in the survey directory.
+3. Time series, series file, data file, & mapping file definitions and relationships
+4. Series file format and field definitions
+5. Data file format and field definitions
+6. Mapping file formats and field definitions
+7. Data Element Dictionary
+================================================================================
+Section 1
+================================================================================
+
+The following is a definition of:  COLLECTIVE BARGAINING SERIES - PRIVATE SECTOR (BP)
+
+Survey Description:  This series summarizes wage-rate changes in major 
+collective bargaining agreements (covering 1,000 workers or more) for 
+production and related workers in manufacturing and nonsupervisory workers 
+in nonmanufacturing.  Compensation (wages and benefits) changes are measured
+for agreements covering 5,000 workers or more.
+
+Summary Data Available:
+
+Wage-Rate Changes:  "Settlements" data measure specified net increases, 
+decreases, and zero change in wage rates resulting from settlements 
+negotiated in the reference period.  Changes occurring within 12 months of 
+the contract effective date ("first-year") and all changes that occur over 
+the contract term expressed as an annual rate ("over the life") are 
+presented.  Data on "wage-rate changes under all major agreements" include 
+increases, decreases and zero change in wage rates during the reference 
+period for all workers in the series, regardless of the contract settlement 
+date.  Included are changes stemming from settlements reached in the 
+calendar year, from agreements reached in a prior year with changes deferred
+to the reference period, and from COLA clauses.  Lump-sum payments are 
+excluded from "settlements" data and from "wage-rate changes under all major 
+agreements".
+
+Compensation Changes:  These data reflect changes (net increases, decreases,
+and zero change) in employee compensation (wages and benefits) resulting 
+from settlements covering 5,000 workers or more which were negotiated in the
+reference period.  The "compensation rate" change measures net increases, 
+decreases, and zero change in compensation rates per work hour resulting 
+from contract settlements.  Lump-sum payments are excluded.  Changes 
+occurring within 12 months of the contract effective date ("first year") and
+all changes that occur over the contract term expressed as an annual rate 
+("over the life") are presented.  The "compensation cost" change measures 
+net increases, decreases, and zero change in the costs for employee 
+compensation per work hour, including specified lump-sum payments, and 
+reflects the timing of compensation rate changes.  Changes that occur over 
+the contract term are expressed as an annual rate ("over the life").
+
+Frequency of Observations:  Data are presented by quarter, calendar year and
+for 4-quarter periods that may extend into each of 2 calendar years.
+
+Data Characteristics:  All percent changes are stored with one decimal 
+place.  All employment measures are in millions.
+
+Updating Schedule:  Updates are available about 4 weeks after the end of 
+each calendar quarter.
+
+References:	BLS Handbook of Methods, Chapter 7, "Negotiated Wage and 
+		Benefit Changes", Bulletin 2285 (1988).
+==================================================================================
+Section 2
+==================================================================================
+The following Collective Bargaining Series (Private Sector) files are on the BLS 
+internet in the sub-directory pub/time.series/bp:
+
+
+	bp.alteration		- Alteration codes	mapping file
+	bp.contacts		- Contacts for bp survey 
+	bp.data.1.AllData	- All Data
+	bp.duration		- Duration codes	mapping file
+	bp.industry		- Industry codes	mapping file
+	bp.measure		- Measure codes		mapping file
+	bp.period		- Period codes		mapping file
+	bp.periodicity		- Periodicity codes	mapping file
+	bp.selection		- Selection codes	mapping file
+	bp.series		- All series and their beginning and end dates
+	bp.txt			- General information
+	bp.unit			- Unit codes		mapping file
+=================================================================================
+Section 3
+=================================================================================
+The definition of a time series, its relationship to and the interrelationship
+among series, data and mapping files is detailed below:
+
+A time series refers to a set of data observed over an extended period of time
+over consistent time intervals (i.e. monthly, quarterly, semi-annually, annually).  
+BLS time series data are typically produced at monthly intervals and represent data 
+ranging from a specific consumer item in a specific geographical area whose price 
+is gathered monthly to a category of worker in a specific industry whose employment
+rate is being recorded monthly, etc.
+
+The FTP files are organized such that data users are provided with the following
+set of files to use in their efforts to interpret data files:
+
+a)  a series file (only one series file per survey)
+b)  mapping files
+c)  data files
+
+The series file contains a set of codes which, together, compose a series 
+identification code that serves to uniquely identify a single time series.  
+Additionally, the series file also contains the following series-level information:
+
+a) the period and year corresponding to the first data observation 
+b) the period and year corresponding to the most recent data observation. 
+
+The mapping files are definition files that contain explanatory text descriptions
+that correspond to each of the various codes contained within each series
+identification code.
+
+The data file contains one line of data for each observation period pertaining to a
+specific time series.  Each line contains a reference to the following:
+
+a) a series identification code
+b) year in which data is observed
+c) period for which data is observed (M13, Q05, and S03 indicate annual averages)
+d) value
+e) footnote code (if available)
+=================================================================================
+Section 4
+=================================================================================
+File Structure and Format: The following represents the file format used to define 
+bp.series.  Note that the Field Numbers are for reference only; they do not exist 
+in the database.  Data files are in ASCII text format.  Data elements are separated 
+by tabs; the first record of each file contains the column headers for the data
+elements stored in each field.  Each record ends with a new line character. 
+
+Field #/Data Element	Length		Value(Example)		
+
+1.  series_id		  13		BPU0114101001
+
+2.  measure_code	  2		01
+
+3.  unit_code		  1		1
+
+4.  periodicity_code	  1		1 
+
+5.  alteration_code	  1		1
+
+6.  industry_code	  2		01
+
+7.  contract_duration	  1		0
+
+8.  contract_selection	  2		01
+
+9.  seasonal		  1		U		
+
+10. begin_year		  4		1983
+
+11. begin_period	  3		Q01
+
+12. end_year		  4		1995
+
+13. end_period		  3		Q04
+
+
+The series_id (BPU0114101001) can be broken out into:
+
+Code					Value(Example)
+
+survey abbreviation	=		BP
+seasonal (code) 	=		U
+measure_code		=		01
+unit_code		=		1
+periodicity_code	=		4
+alteration_code		=		1
+industry_code		=		01
+contract_duration	=		0
+contract_selection	=		01
+==================================================================================
+Section 5
+==================================================================================
+File Structure and Format: The following represents the file format used to define
+each data file.  Note that the field numbers are for reference only; they do not 
+exist in the database.  Data files are in ASCII text format.  Data elements are 
+separated by tabs; the first record of each file contains the column headers for 
+the data elements stored in each field.  Each record ends with a new line character.  
+
+File Name:  bp.data.1.AllData
+
+The above-named data file has the following format:
+
+Field #/Data Element	Length		Value(Example)		
+
+1. series_id		  13		BPU0114101001 	      	
+
+2. year			   4		1995	
+
+3. period		   3		Q01		
+
+4. value		  12      	2.3	
+
+5. cont_break		   1		N 
+
+6. status		   1 		F	
+				 
+7. footnote_exists	   1		N
+				
+
+The series_id (BPU0114101001) can be broken out into:
+
+Code					Value(Example)
+
+survey abbreviation	=		BP
+seasonal (code) 	=		U
+measure_code		=		01
+unit_code		=		1
+periodicity_code	=		4
+alteration_code		=		1
+industry_code		=		01
+contract_duration	=		0
+contract_selection	=		01
+================================================================================
+Section 6
+================================================================================
+File Structure and Format:  The following represents the file format used to define
+each mapping file. Note that the field numbers are for reference only; they do not
+exist in the database.  Mapping files are in ASCII text format.  Data elements are
+separated by tabs; the first record of each file contains the column headers for the
+data elements stored in each field.  Each record ends with a new line character. 
+
+
+File Name:  bp.alteration	
+
+Field #/Data Element		Length		Value(Example)
+
+1. alteration_code		1		1
+	
+2. alteration_text		50		Text
+
+
+File Name:  bp.duration
+
+Field #/Data Element		Length		Value(Example)
+
+1. contract_duration		1		0
+
+2. contract_duration_text	50		Text
+
+
+File Name:  bp.industry
+
+Field #/Data Element		Length		Value(Example)
+
+1. industry_code		2		01
+
+2. industry_name		40		Text
+
+
+File Name:  bp.measure
+
+Field #/Data Element		Length		Value(Example)
+
+1. measure_code			2		01
+
+2. measure_text			90		Text
+
+
+File Name:  bp.period
+
+Field #/Data Element		Length		Value(Example)
+
+1. period			3		Q01
+	
+2. period_abbr			5		QTR1
+
+3. period_name			20		Text
+
+
+File Name:  bp.periodicity
+
+Field #/Data Element		Length		Value(Example)
+
+1. periodicity_code		1		1
+
+2. periodicity_text		40		Text
+
+
+File Name:  bp.selection
+
+Field #/Data Element		Length		Value(Example)
+
+1. contract_selection		2		01
+
+2. contract_selection_text	80		Text
+
+
+File Name:  bp.unit
+
+Field #/Data Element		Length		Value(Example)
+
+1. unit_code			1		1
+		
+2. unit_text			20		Text
+=========================================================================================
+Section 7
+=========================================================================================
+COLLECTIVE BARGAINING SERIES - PRIVATE SECTOR (BP) DATABASE ELEMENTS
+
+
+Data Element	Length		Value(Example)			Description
+
+alteration_code	1		1			Code identifying the type of
+							change measured by the observation.
+							
+alteration_text	50		Text			Description of type of change
+				Ex: Increases only 	measured by the observation.
+					
+begin_period	3		A01			Identifies first data observation
+				Ex: A01=Annual data	within the first year for which 
+				(Q=Quarterly, A=Annual)	data is available for a given
+							time series.
+				
+begin_year	4		1975			Identifies first year for which
+							data is available for a given
+							time series.
+							
+cont_break	1		Y=Continuity break	Identifies point at which
+				N=No break		data within a series are no
+							longer comparable.
+
+contract_	1		0			Code identifying the length
+duration						of the contract.
+
+contract_	50		Text			Description of the length
+duration_text			Ex: All contracts	of contract.			
+				
+contract_	2		01			Code identifying the contracts 
+selection						negotiated in the period.
+							
+contract_	80		Text			Description of contracts
+selection_text			Ex: All contracts	negotiated in the period. 
+				in period. 	
+				
+end_period	3		Q04			Identifies last data observation   
+				Ex: Q04=Fourth quarter	within the last year for which
+				(Q=Quarterly, A=Annual)	data is available for a given
+							time series.
+				
+end_year	4		1980			Identifies last year for which 
+							data is available for a given
+							time series.
+							
+footnote_exists	1		N=No footnote		Identifies whether a footnote 
+				Y=Footnote		exists for the data series.  
+							(To see footnote, refer to 
+							publication.)
+
+industry_code	2		01			Code identifying the industry.
+							
+industry_name	40		Text			Name of the industry.
+				Ex: All industries
+					
+measure_code	2		01			The measure identifier.
+
+measure_text	90		Text			Name of element being
+				Ex: Settlements, 1st	measured by the observation.
+				Year Compensation.
+			 	
+period_abbr	5		QTR1			Abbreviation of period name. 
+ 				
+period		3		Q01			Identifies period for which
+				Ex: Q01=First Quarter	data is observed. 
+				(Q=Quarterly, A=Annual)	
+					
+period_name	20		Text			Full name of period to which
+ 				Ex: 1st Quarter		the data observation refers.
+					
+periodicity_	1		1			Code identifying the frequency 
+code 							of the observation. 
+						
+periodicity_	40		Text			Frequency of the observation.
+text 				Ex: Four quarters 		
+				ending
+
+seasonal	1		S=Seasonally		Code identifying whether the 
+				  Adjusted		data are seasonally adjusted.
+			 	U=Unadjusted		
+
+series_id	13		BPU0114101001		Code identifying the specific 
+					 		series.
+
+status		1		F=Final data		Code identifying whether data 
+				P=Premliminary data 	are preliminary or final.
+				  			
+unit_code	1		1			Code identifying the unit
+							of measurement.
+
+unit_text	20		Text			Name of unit of measurement 
+ 				Ex: Mean (in percent)	for observation.
+					
+value		12		Data value		Observation for the series. 
+
+year		4		1990			Identifies year of observation.	
+			
+
+
+
+
+	

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