{
  "variables": {
    "PANEL": {
      "label": "SIPP Panel Year",
      "predicateType": "int",
      "group": "N/A",
      "limit": 0,
      "values": {
        "range": [
          {
            "min": "1991",
            "max": "1991",
            "description": "Continuous values of PANEL"
          }
        ]
      }
    },
    "PNUM": {
      "label": "Person Number",
      "predicateType": "int",
      "group": "N/A",
      "limit": 0,
      "values": {
        "range": [
          {
            "min": "101",
            "max": "803",
            "description": "Continuous values of PNUM"
          }
        ]
      }
    },
    "ENTRY": {
      "label": "Entry Address ID",
      "predicateType": "int",
      "group": "N/A",
      "limit": 0,
      "values": {
        "range": [
          {
            "min": "11",
            "max": "82",
            "description": "Continuous values of ENTRY"
          }
        ]
      }
    },
    "SUID": {
      "label": "Sample Unit Identifier",
      "predicateType": "int",
      "group": "N/A",
      "limit": 0,
      "values": {
        "range": [
          {
            "min": "1074023",
            "max": "998986814",
            "description": "Continuous values of SUID"
          }
        ]
      }
    },
    "TOBD91": {
      "label": "Type of OASDI Benefit",
      "predicateType": "int",
      "group": "N/A",
      "limit": 0,
      "values": {
        "item": {
          "0": "Not in Sample in January 1991",
          "4": "Aged Dually Entitled Wife",
          "9": "Mtch not in cur pay or no MBR or no Mtc",
          "2": "Disabled Workers",
          "5": "Aged Widow",
          "7": "All Other",
          "1": "All Ret. Wkrs., excl. Dually Entitled FM",
          "6": "Aged Dually Entitled Widow",
          "3": "Aged Wife"
        }
      }
    },
    "SSAYOD": {
      "label": "MBR/SSR Year of Death",
      "predicateType": "int",
      "group": "N/A",
      "limit": 0,
      "values": {
        "range": [
          {
            "min": "0",
            "max": "1996",
            "description": "Continuous values of SSAYOD"
          }
        ]
      }
    }
  }
}