| Value | Category |
|---|---|
| 1 | Bad weather conditions |
| 2 | Reduced workload for technical or economics reason |
| 3 | Labour dispute |
| 4 | Education or training |
| 5 | Ilness, injury or temporary disability |
| 6 | Maternity leave |
| 7 | Parental leave |
| 8 | Annual leave, national or religious holidays |
| 9 | Compensation leave |
| 10 | Other (personal reasons) |
| Sysmiss |