{
  "type": "object",
  "additionalProperties": false,
  "properties": {
    "fileReference": {
      "type": "string",
      "description": "the Aktenzeichen reference code printed in the header"
    },
    "investmentAmount": {
      "type": "number",
      "description": "the Anlagebetrag amount printed in the header, in DM as printed"
    },
    "savingsAllowance": {
      "type": "number",
      "description": "the Sparzulage amount printed in the header, in DM as printed"
    },
    "deductionRows": {
      "type": "array",
      "description": "one object per printed row of the lower deductions table (the Lohnsteuer / Krankenversicherung / Rentenversicherung / Arbeitslosenversicherung block). amounts in this table are printed without a decimal separator and the last two digits are cents, so divide by 100 (a printed value of 8940 means 89.40).",
      "items": {
        "type": "object",
        "additionalProperties": false,
        "properties": {
          "accountingMonth": {
            "type": "string",
            "description": "the Abr. Mt. settlement-month code at the start of the row; null if the cell is blank"
          },
          "incomeTax": {
            "type": "number",
            "description": "the Lohnsteuer amount in column 28, in DM (the printed digits have no decimal separator, so the last two digits are cents)"
          },
          "healthInsurance": {
            "type": "number",
            "description": "the Krankenversicherung employee-share amount in column 31, in DM (the printed digits have no decimal separator, so the last two digits are cents)"
          },
          "pensionInsurance": {
            "type": "number",
            "description": "the Rentenversicherung employee-share amount in column 32, in DM (the printed digits have no decimal separator, so the last two digits are cents)"
          },
          "unemploymentInsurance": {
            "type": "number",
            "description": "the Arbeitslosenversicherung employee-share amount in column 33, in DM (the printed digits have no decimal separator, so the last two digits are cents)"
          }
        }
      }
    }
  }
}