| Value | Category | 
|---|---|
| 1 | paid employment | 
| 2 | work on own agricultural holding | 
| 3 | work in own business outside private agriculture | 
| 4 | retirement pay | 
| 5 | disability pension | 
| 6 | unemployment benefit | 
| 7 | pre-retirement allowance | 
| 8 | other social allowance | 
| 9 | other non-earning source | 
| 10 | provided for by other person | 
| Sysmiss |