observation_date,BOGMBASE
1959-01-01,50.5
1959-02-01,49.8
1959-03-01,49.7
1959-04-01,50.1
1959-05-01,50.1
1959-06-01,50.3
1959-07-01,50.8
1959-08-01,50.7
1959-09-01,50.7
1959-10-01,50.7
1959-11-01,50.9
1959-12-01,51.5
1960-01-01,50.7
1960-02-01,49.6
1960-03-01,49.5
1960-04-01,49.7
1960-05-01,49.7
1960-06-01,50.0
1960-07-01,50.5
1960-08-01,50.3
1960-09-01,49.9
1960-10-01,50.1
1960-11-01,50.3
1960-12-01,49.8
1961-01-01,49.1
1961-02-01,48.4
1961-03-01,48.4
1961-04-01,48.5
1961-05-01,48.5
1961-06-01,48.9
1961-07-01,49.2
1961-08-01,49.3
1961-09-01,49.6
1961-10-01,50.0
1961-11-01,50.5
1961-12-01,51.3
1962-01-01,50.6
1962-02-01,49.8
1962-03-01,50.0
1962-04-01,50.4
1962-05-01,50.5
1962-06-01,50.9
1962-07-01,51.3
1962-08-01,51.2
1962-09-01,51.3
1962-10-01,51.6
1962-11-01,51.3
1962-12-01,52.3
1963-01-01,51.6
1963-02-01,51.0
1963-03-01,51.2
1963-04-01,51.5
1963-05-01,51.7
1963-06-01,52.2
1963-07-01,52.8
1963-08-01,52.6
1963-09-01,52.9
1963-10-01,53.1
1963-11-01,53.8
1963-12-01,54.9
1964-01-01,54.2
1964-02-01,53.5
1964-03-01,53.8
1964-04-01,54.1
1964-05-01,54.3
1964-06-01,54.9
1964-07-01,55.4
1964-08-01,55.4
1964-09-01,55.9
1964-10-01,56.2
1964-11-01,56.8
1964-12-01,57.7
1965-01-01,57.1
1965-02-01,56.5
1965-03-01,56.7
1965-04-01,57.1
1965-05-01,57.2
1965-06-01,57.8
1965-07-01,58.4
1965-08-01,58.2
1965-09-01,58.6
1965-10-01,59.1
1965-11-01,59.6
1965-12-01,61.0
1966-01-01,60.5
1966-02-01,59.8
1966-03-01,59.9
1966-04-01,60.5
1966-05-01,60.6
1966-06-01,61.1
1966-07-01,62.1
1966-08-01,61.7
1966-09-01,62.4
1966-10-01,62.6
1966-11-01,63.0
1966-12-01,64.2
1967-01-01,63.8
1967-02-01,63.3
1967-03-01,63.2
1967-04-01,63.3
1967-05-01,63.4
1967-06-01,64.0
1967-07-01,64.8
1967-08-01,64.7
1967-09-01,65.2
1967-10-01,65.9
1967-11-01,66.5
1967-12-01,67.8
1968-01-01,67.7
1968-02-01,67.2
1968-03-01,67.5
1968-04-01,68.0
1968-05-01,68.1
1968-06-01,68.9
1968-07-01,69.7
1968-08-01,69.9
1968-09-01,70.0
1968-10-01,70.8
1968-11-01,71.7
1968-12-01,73.1
1969-01-01,72.9
1969-02-01,72.0
1969-03-01,71.8
1969-04-01,72.4
1969-05-01,73.4
1969-06-01,73.5
1969-07-01,73.7
1969-08-01,73.8
1969-09-01,73.8
1969-10-01,74.4
1969-11-01,75.6
1969-12-01,76.8
1970-01-01,76.4
1970-02-01,75.2
1970-03-01,75.3
1970-04-01,76.3
1970-05-01,76.6
1970-06-01,76.9
1970-07-01,78.0
1970-08-01,78.2
1970-09-01,78.7
1970-10-01,78.7
1970-11-01,79.5
1970-12-01,81.0
1971-01-01,81.2
1971-02-01,80.6
1971-03-01,80.8
1971-04-01,81.6
1971-05-01,82.4
1971-06-01,82.9
1971-07-01,84.2
1971-08-01,84.1
1971-09-01,84.4
1971-10-01,84.7
1971-11-01,85.5
1971-12-01,86.8
1972-01-01,87.2
1972-02-01,86.1
1972-03-01,86.7
1972-04-01,87.9
1972-05-01,88.5
1972-06-01,88.9
1972-07-01,90.1
1972-08-01,90.1
1972-09-01,90.2
1972-10-01,91.4
1972-11-01,90.5
1972-12-01,91.4
1973-01-01,91.7
1973-02-01,90.3
1973-03-01,91.1
1973-04-01,92.6
1973-05-01,93.1
1973-06-01,93.7
1973-07-01,95.6
1973-08-01,95.8
1973-09-01,96.2
1973-10-01,97.5
1973-11-01,98.3
1973-12-01,100.1
1974-01-01,100.4
1974-02-01,99.1
1974-03-01,99.6
1974-04-01,101.7
1974-05-01,102.8
1974-06-01,103.6
1974-07-01,105.1
1974-08-01,105.0
1974-09-01,105.3
1974-10-01,105.7
1974-11-01,106.9
1974-12-01,108.6
1975-01-01,107.7
1975-02-01,105.5
1975-03-01,105.7
1975-04-01,106.8
1975-05-01,107.0
1975-06-01,108.4
1975-07-01,109.5
1975-08-01,109.1
1975-09-01,109.2
1975-10-01,109.7
1975-11-01,111.1
1975-12-01,113.1
1976-01-01,111.9
1976-02-01,110.6
1976-03-01,111.3
1976-04-01,113.1
1976-05-01,113.6
1976-06-01,114.4
1976-07-01,115.6
1976-08-01,115.5
1976-09-01,115.6
1976-10-01,116.6
1976-11-01,118.3
1976-12-01,120.3
1977-01-01,119.7
1977-02-01,117.8
1977-03-01,118.7
1977-04-01,120.6
1977-05-01,121.0
1977-06-01,121.8
1977-07-01,124.1
1977-08-01,124.2
1977-09-01,124.4
1977-10-01,125.7
1977-11-01,127.6
1977-12-01,129.9
1978-01-01,130.2
1978-02-01,128.7
1978-03-01,129.1
1978-04-01,131.2
1978-05-01,132.3
1978-06-01,133.6
1978-07-01,135.7
1978-08-01,135.2
1978-09-01,136.2
1978-10-01,137.6
1978-11-01,140.7
1978-12-01,144.7
1979-01-01,144.3
1979-02-01,141.6
1979-03-01,142.3
1979-04-01,144.4
1979-05-01,144.5
1979-06-01,145.9
1979-07-01,148.1
1979-08-01,148.6
1979-09-01,149.6
1979-10-01,151.5
1979-11-01,153.8
1979-12-01,156.7
1980-01-01,156.0
1980-02-01,153.9
1980-03-01,155.0
1980-04-01,157.9
1980-05-01,157.9
1980-06-01,158.9
1980-07-01,159.9
1980-08-01,158.4
1980-09-01,159.4
1980-10-01,160.9
1980-11-01,162.0
1980-12-01,163.4
1981-01-01,161.1
1981-02-01,159.0
1981-03-01,159.8
1981-04-01,162.4
1981-05-01,163.2
1981-06-01,163.9
1981-07-01,166.0
1981-08-01,166.1
1981-09-01,164.7
1981-10-01,165.0
1981-11-01,167.2
1981-12-01,170.7
1982-01-01,169.8
1982-02-01,167.5
1982-03-01,166.2
1982-04-01,168.7
1982-05-01,170.0
1982-06-01,171.7
1982-07-01,173.4
1982-08-01,174.0
1982-09-01,173.4
1982-10-01,175.0
1982-11-01,177.5
1982-12-01,180.7
1983-01-01,178.9
1983-02-01,177.0
1983-03-01,177.3
1983-04-01,180.0
1983-05-01,181.4
1983-06-01,183.3
1983-07-01,185.3
1983-08-01,185.4
1983-09-01,184.9
1983-10-01,186.4
1983-11-01,189.1
1983-12-01,192.2
1984-01-01,191.3
1984-02-01,186.8
1984-03-01,189.1
1984-04-01,192.2
1984-05-01,192.8
1984-06-01,195.7
1984-07-01,197.5
1984-08-01,196.7
1984-09-01,197.9
1984-10-01,198.1
1984-11-01,200.6
1984-12-01,204.8
1985-01-01,203.2
1985-02-01,200.2
1985-03-01,202.7
1985-04-01,205.5
1985-05-01,206.7
1985-06-01,210.2
1985-07-01,212.3
1985-08-01,212.8
1985-09-01,214.7
1985-10-01,216.0
1985-11-01,219.5
1985-12-01,224.7
1986-01-01,221.7
1986-02-01,217.8
1986-03-01,221.4
1986-04-01,225.1
1986-05-01,226.4
1986-06-01,230.1
1986-07-01,233.0
1986-08-01,233.2
1986-09-01,235.1
1986-10-01,237.0
1986-11-01,242.0
1986-12-01,248.6
1987-01-01,247.0
1987-02-01,242.5
1987-03-01,244.8
1987-04-01,249.6
1987-05-01,250.6
1987-06-01,252.9
1987-07-01,254.8
1987-08-01,254.6
1987-09-01,256.3
1987-10-01,258.1
1987-11-01,262.4
1987-12-01,266.9
1988-01-01,266.3
1988-02-01,260.7
1988-03-01,263.4
1988-04-01,268.4
1988-05-01,268.8
1988-06-01,273.1
1988-07-01,275.8
1988-08-01,274.8
1988-09-01,275.2
1988-10-01,275.4
1988-11-01,279.2
1988-12-01,283.8
1989-01-01,282.2
1989-02-01,275.3
1989-03-01,278.8
1989-04-01,281.6
1989-05-01,280.6
1989-06-01,283.7
1989-07-01,285.7
1989-08-01,283.9
1989-09-01,284.0
1989-10-01,284.2
1989-11-01,287.8
1989-12-01,294.3
1990-01-01,293.1
1990-02-01,287.7
1990-03-01,292.4
1990-04-01,297.4
1990-05-01,297.3
1990-06-01,301.7
1990-07-01,303.9
1990-08-01,305.1
1990-09-01,308.0
1990-10-01,308.8
1990-11-01,313.7
1990-12-01,315.3
1991-01-01,309.6
1991-02-01,306.9
1991-03-01,311.1
1991-04-01,314.1
1991-05-01,314.3
1991-06-01,318.1
1991-07-01,320.0
1991-08-01,320.1
1991-09-01,321.8
1991-10-01,323.1
1991-11-01,328.4
1991-12-01,335.4
1992-01-01,333.1
1992-02-01,331.2
1992-03-01,335.6
1992-04-01,333.1
1992-05-01,334.5
1992-06-01,337.1
1992-07-01,340.4
1992-08-01,342.7
1992-09-01,346.9
1992-10-01,349.8
1992-11-01,355.9
1992-12-01,361.9
1993-01-01,360.6
1993-02-01,359.5
1993-03-01,362.7
1993-04-01,368.8
1993-05-01,370.8
1993-06-01,375.8
1993-07-01,379.1
1993-08-01,380.9
1993-09-01,384.7
1993-10-01,388.2
1993-11-01,392.0
1993-12-01,398.6
1994-01-01,397.8
1994-02-01,397.9
1994-03-01,400.8
1994-04-01,406.9
1994-05-01,407.1
1994-06-01,411.6
1994-07-01,415.0
1994-08-01,415.3
1994-09-01,416.9
1994-10-01,418.7
1994-11-01,423.1
1994-12-01,428.5
1995-01-01,426.2
1995-02-01,422.9
1995-03-01,427.7
1995-04-01,433.5
1995-05-01,434.0
1995-06-01,434.8
1995-07-01,435.9
1995-08-01,435.5
1995-09-01,436.3
1995-10-01,436.6
1995-11-01,439.1
1995-12-01,445.8
1996-01-01,441.7
1996-02-01,435.7
1996-03-01,440.5
1996-04-01,443.4
1996-05-01,443.0
1996-06-01,446.4
1996-07-01,449.8
1996-08-01,450.9
1996-09-01,452.0
1996-10-01,452.5
1996-11-01,457.0
1996-12-01,465.0
1997-01-01,462.5
1997-02-01,459.9
1997-03-01,462.3
1997-04-01,465.5
1997-05-01,467.0
1997-06-01,469.8
1997-07-01,473.1
1997-08-01,474.3
1997-09-01,475.4
1997-10-01,477.7
1997-11-01,484.6
1997-12-01,493.1
1998-01-01,491.2
1998-02-01,488.4
1998-03-01,491.0
1998-04-01,494.1
1998-05-01,495.2
1998-06-01,498.1
1998-07-01,502.4
1998-08-01,504.9
1998-09-01,508.6
1998-10-01,512.6
1998-11-01,518.3
1998-12-01,526.4
1999-01-01,527.9
1999-02-01,526.4
1999-03-01,531.0
1999-04-01,535.2
1999-05-01,540.6
1999-06-01,544.0
1999-07-01,548.8
1999-08-01,551.4
1999-09-01,556.8
1999-10-01,564.7
1999-11-01,582.8
1999-12-01,612.5
2000-01-01,601.9
2000-02-01,578.0
2000-03-01,577.1
2000-04-01,578.6
2000-05-01,580.6
2000-06-01,582.0
2000-07-01,584.2
2000-08-01,583.4
2000-09-01,583.8
2000-10-01,585.3
2000-11-01,590.3
2000-12-01,598.3
2001-01-01,598.7
2001-02-01,595.9
2001-03-01,599.1
2001-04-01,601.7
2001-05-01,605.9
2001-06-01,609.1
2001-07-01,616.0
2001-08-01,622.4
2001-09-01,647.2
2001-10-01,635.2
2001-11-01,639.5
2001-12-01,650.8
2002-01-01,653.8
2002-02-01,654.6
2002-03-01,659.0
2002-04-01,663.4
2002-05-01,668.6
2002-06-01,674.0
2002-07-01,679.3
2002-08-01,679.8
2002-09-01,680.4
2002-10-01,681.9
2002-11-01,688.5
2002-12-01,699.2
2003-01-01,699.3
2003-02-01,701.0
2003-03-01,705.3
2003-04-01,709.6
2003-05-01,713.7
2003-06-01,715.0
2003-07-01,717.6
2003-08-01,720.9
2003-09-01,721.1
2003-10-01,724.8
2003-11-01,730.6
2003-12-01,739.4
2004-01-01,736.4
2004-02-01,735.3
2004-03-01,736.8
2004-04-01,741.2
2004-05-01,745.0
2004-06-01,750.7
2004-07-01,757.3
2004-08-01,757.2
2004-09-01,762.2
2004-10-01,763.9
2004-11-01,770.5
2004-12-01,776.3
2005-01-01,775.2
2005-02-01,772.9
2005-03-01,773.5
2005-04-01,775.5
2005-05-01,776.4
2005-06-01,780.7
2005-07-01,782.9
2005-08-01,782.7
2005-09-01,787.9
2005-10-01,787.2
2005-11-01,793.5
2005-12-01,803.1
2006-01-01,804.2
2006-02-01,804.9
2006-03-01,810.1
2006-04-01,809.2
2006-05-01,812.6
2006-06-01,812.4
2006-07-01,811.5
2006-08-01,809.7
2006-09-01,810.4
2006-10-01,809.8
2006-11-01,816.8
2006-12-01,826.7
2007-01-01,823.0
2007-02-01,820.0
2007-03-01,820.9
2007-04-01,823.0
2007-05-01,825.7
2007-06-01,827.2
2007-07-01,828.9
2007-08-01,829.6
2007-09-01,827.4
2007-10-01,829.0
2007-11-01,834.3
2007-12-01,837.2
2008-01-01,830.6
2008-02-01,829.5
2008-03-01,833.0
2008-04-01,830.2
2008-05-01,834.7
2008-06-01,840.2
2008-07-01,847.0
2008-08-01,847.6
2008-09-01,909.7
2008-10-01,1136.4
2008-11-01,1442.3
2008-12-01,1666.4
2009-01-01,1712.0
2009-02-01,1561.7
2009-03-01,1647.3
2009-04-01,1753.2
2009-05-01,1775.1
2009-06-01,1683.7
2009-07-01,1673.6
2009-08-01,1710.8
2009-09-01,1801.2
2009-10-01,1936.3
2009-11-01,2024.6
2009-12-01,2026.2
2010-01-01,1995.0
2010-02-01,2115.2
2010-03-01,2079.6
2010-04-01,2014.4
2010-05-01,2012.3
2010-06-01,2002.4
2010-07-01,1994.3
2010-08-01,1993.7
2010-09-01,1961.2
2010-10-01,1961.7
2010-11-01,1973.1
2010-12-01,2017.0
2011-01-01,2047.9
2011-02-01,2211.6
2011-03-01,2395.3
2011-04-01,2496.6
2011-05-01,2567.2
2011-06-01,2648.5
2011-07-01,2684.8
2011-08-01,2657.7
2011-09-01,2637.7
2011-10-01,2637.8
2011-11-01,2605.4
2011-12-01,2619.6
2012-01-01,2640.8
2012-02-01,2694.4
2012-03-01,2655.2
2012-04-01,2639.8
2012-05-01,2616.5
2012-06-01,2618.8
2012-07-01,2647.8
2012-08-01,2650.7
2012-09-01,2594.9
2012-10-01,2611.8
2012-11-01,2646.8
2012-12-01,2675.9
2013-01-01,2741.7
2013-02-01,2845.3
2013-03-01,2935.0
2013-04-01,3011.7
2013-05-01,3116.9
2013-06-01,3201.5
2013-07-01,3290.9
2013-08-01,3398.9
2013-09-01,3486.9
2013-10-01,3589.5
2013-11-01,3684.6
2013-12-01,3717.5
2014-01-01,3728.5
2014-02-01,3833.4
2014-03-01,3885.9
2014-04-01,3930.7
2014-05-01,3911.5
2014-06-01,3948.7
2014-07-01,3989.1
2014-08-01,4075.0
2014-09-01,4049.2
2014-10-01,4001.5
2014-11-01,3830.4
2014-12-01,3934.5
2015-01-01,4017.1
2015-02-01,3840.5
2015-03-01,4030.6
2015-04-01,4059.4
2015-05-01,3949.4
2015-06-01,3919.6
2015-07-01,3961.2
2015-08-01,3984.0
2015-09-01,4028.5
2015-10-01,4060.5
2015-11-01,4006.7
2015-12-01,3835.8
2016-01-01,3792.7
2016-02-01,3872.5
2016-03-01,3898.4
2016-04-01,3872.9
2016-05-01,3836.5
2016-06-01,3825.5
2016-07-01,3772.5
2016-08-01,3816.7
2016-09-01,3735.9
2016-10-01,3572.1
2016-11-01,3629.8
2016-12-01,3531.6
2017-01-01,3595.5
2017-02-01,3746.4
2017-03-01,3856.3
2017-04-01,3821.7
2017-05-01,3774.4
2017-06-01,3762.8
2017-07-01,3795.4
2017-08-01,3910.0
2017-09-01,3874.5
2017-10-01,3829.9
2017-11-01,3907.7
2017-12-01,3851.0
2018-01-01,3824.8
2018-02-01,3855.1
2018-03-01,3800.6
2018-04-01,3727.1
2018-05-01,3674.8
2018-06-01,3650.5
2018-07-01,3618.3
2018-08-01,3584.5
2018-09-01,3559.8
2018-10-01,3520.9
2018-11-01,3476.3
2018-12-01,3400.7
2019-01-01,3346.9
2019-02-01,3353.5
2019-03-01,3381.5
2019-04-01,3286.7
2019-05-01,3244.5
2019-06-01,3274.8
2019-07-01,3260.3
2019-08-01,3271.4
2019-09-01,3202.7
2019-10-01,3252.8
2019-11-01,3315.6
2019-12-01,3426.5
2020-01-01,3442.6
2020-02-01,3454.5
2020-03-01,3883.1
2020-04-01,4844.9
2020-05-01,5149.4
2020-06-01,5001.8
2020-07-01,4700.3
2020-08-01,4807.4
2020-09-01,4880.3
2020-10-01,4917.1
2020-11-01,5093.0
2020-12-01,5206.5
2021-01-01,5248.0
2021-02-01,5446.8
2021-03-01,5839.0
2021-04-01,6042.1
2021-05-01,6041.9
2021-06-01,6027.0
2021-07-01,6130.2
2021-08-01,6328.7
2021-09-01,6388.8
2021-10-01,6330.9
2021-11-01,6394.7
2021-12-01,6413.1
2022-01-01,6103.9
2022-02-01,6039.9
2022-03-01,6134.3
2022-04-01,5885.0
2022-05-01,5591.3
2022-06-01,5506.3
2022-07-01,5536.9
2022-08-01,5582.0
2022-09-01,5411.1
2022-10-01,5340.3
2022-11-01,5419.4
2022-12-01,5406.0
2023-01-01,5329.0
2023-02-01,5321.6
2023-03-01,5571.5
2023-04-01,5593.1
2023-05-01,5569.6
2023-06-01,5608.5
2023-07-01,5517.8
2023-08-01,5559.0
2023-09-01,5567.2
2023-10-01,5601.2
2023-11-01,5731.3
2023-12-01,5827.2
2024-01-01,5843.3
2024-02-01,5896.4
2024-03-01,5882.5
2024-04-01,5774.7
2024-05-01,5724.6
2024-06-01,5731.4
2024-07-01,5653.3
2024-08-01,5669.6
2024-09-01,5587.8
2024-10-01,5566.6
2024-11-01,5615.9
2024-12-01,5603.5
2025-01-01,5613.5
2025-02-01,5613.3
2025-03-01,5774.8
2025-04-01,5732.4
2025-05-01,5648.1
2025-06-01,5748.2
2025-07-01,5740.0
2025-08-01,5686.1
2025-09-01,5478.0
2025-10-01,5361.8
2025-11-01,5302.1
2025-12-01,5373.7
2026-01-01,5402.5
2026-02-01,5388.0