| Value | Category |
|---|---|
| 00 | NIU (not in universe) |
| 08 | Retirement pay (employee, derivative and combatant) |
| 09 | Retirement pay of farmers |
| 10 | Pension resulting from an inability to work |
| 11 | Social pension |
| 12 | Family pension |
| 13 | Unemployment benefit |
| 14 | Welfare benefit |
| 15 | Other unearned source of income |
| 99 | Unknown |