| Value | Category |
|---|---|
| 0 | Not working |
| 1 | Agric. owner |
| 2 | Agric. worker |
| 3 | Industrial owner |
| 4 | Priv. Administrative |
| 5 | Public administrativ |
| 6 | Technical/scientific |
| 7 | Non commerc. workers |
| 8 | Commercial workers |
| 9 | Skilled work |
| 10 | Unskilled work |
| 11 | Paid domestic worker |
| 12 | Fisher |
| 13 | Religion |