| Value | Category |
|---|---|
| 00 | No principal resident in household |
| 01 | Worker (not in production) |
| 02 | Worker in production |
| 03 | White-collar worker |
| 04 | Intellectual worker |
| 05 | Cooperative farmer |
| 06 | Agricultural specialist |
| 07 | Member of other cooperatives |
| 08 | Self-employed |
| 09 | Other/unknown |
| 99 | NIU (not in universe) |