| Value | Category | Cases | |
|---|---|---|---|
| 1 | For a specified period | 61 |
51.3%
|
| 2 | Permanent or until retire | 14 |
11.8%
|
| 3 | Not permanent but without a specified end date | 30 |
25.2%
|
| 4 | For the completion of tasks | 14 |
11.8%
|
| Sysmiss | 4425 |