| Value | Category | Cases | |
|---|---|---|---|
| 0 | None | 1 |
10%
|
| 1 | Permanent | 4 |
40%
|
| 2 | Fixed-term | 3 |
30%
|
| 3 | Hourly | 2 |
20%
|
| Sysmiss | 4051 |