| Value | Category |
|---|---|
| 0 | N/A |
| 1 | Employees |
| 2 | Self-employed |
| 11 | Civilians |
| 12 | Soldiers |
| 13 | Employers |
| 14 | Members of producers' cooperatives |
| 15 | The production of goods |
| 16 | Trade |
| 17 | Construction |
| 18 | Transport |
| 19 | Brokering |
| 20 | LPH |
| 21 | Other activities |
| 22 | Helping family members |