| Value | Category |
|---|---|
| 0 | Not working and didn't work in last 12 months |
| 1 | Professional/technical/managerial |
| 2 | Clerical |
| 3 | Sales |
| 4 | Agricultural - self employed |
| 5 | Agricultural - employee |
| 6 | Household and domestic |
| 7 | Services |
| 8 | Skilled manual |
| 9 | Unskilled manual |
| 99996 | Other |
| 99998 | Don't know |