| Value | Category |
|---|---|
| 1 | Receives earnings |
| 2 | Receives public assistance |
| 3 | Receives both |
| 4 | Does not receive earnings or public assistance |
| 5 | Receives public assistance, but earnings missing |
| 6 | Receives earnings, but public assistance missing |
| 7 | Doesn't receive public assistance, but earnings missing |
| 999 | Don't know and/or refused |