| Value | Category |
|---|---|
| 0 | 0 not defined |
| 1 | 1 according to: age |
| 2 | 2. according to: disability |
| 3 | 3 according to: loss of provider |
| 4 | 4 according to: years at work |
| 5 | 5 according to: age |
| 6 | 6 according to: disability with limited work activity |
| 7 | 7 according to: loss of provider |
| 8 | 8 social |