| Value | Category | 
|---|---|
| 1 | Employer manager of establishment with10 or more employees | 
| 2 | Employer manager of establishment with less than 10 employee | 
| 3 | Professional worker lawyer, accounta | 
| 4 | Supervisory - office worker: superv | 
| 5 | Non-manual - office worker: non-sup | 
| 6 | Foreman and supervisor | 
| 7 | Skilled manual worker | 
| 8 | Semi-skilled manual worker | 
| 9 | Unskilled manual | 
| 10 | Farmer | 
| 11 | Agricultural worker | 
| 12 | Armed forces | 
| 13 | Never worked | 
| 14 | Other | 
| -5 | Missing | 
| -4 | Not asked | 
| -3 | Not applicable | 
| -2 | NA | 
| -1 | DK |