| Value | Category |
|---|---|
| 01 | Legislators, entrepreneurs and upper management |
| 02 | Intellectual, scientific and highly skilled professions |
| 03 | Technical professions |
| 04 | Clerical support workers |
| 05 | Highly skilled professions in business activities and services |
| 06 | Craftsmen, skilled workers and farmers |
| 07 | Plant operators, stationary and fixed machine operators and vehicle drivers |
| 08 | Unskilled professions |
| 09 | Armed forces |
| 99 | NIU (not in universe) |