| Value | Category |
|---|---|
| 1 | Agricultural or related work that is family/self-owned |
| 2 | Agricultural or related work that is owned by someone else (includes government and others) |
| 3 | Non-agricultural work in a family/self-owned enterprise |
| 4 | Non-agricultural work in an enterprise owned by someone else (includes government and others) |
| Sysmiss |