| Value | Category |
|---|---|
| 1 | Reference person |
| 2 | Spouse (or cohabiting partner) of reference person |
| 3 | Child of reference person (or of his/her spouse or cohabiting partner) |
| 4 | Ascendant relative of reference person (or of his/her spouse or cohabiting partner) |
| 5 | Other relative |
| 6 | Other |
| 9 | Not applicable |