| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes, written contract for a limited period | 262 |
1.4%
|
| 2 | Yes, written contract for unlimited period | 798 |
4.4%
|
| 3 | Yes, group agreement | 39 |
0.2%
|
| 4 | Yes, verbal agreement | 1248 |
6.9%
|
| 5 | No | 1290 |
7.1%
|
| Sysmiss | 14532 |