| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes, written contract | 1238 |
49%
|
| 2 | Yes, oral agreement | 1026 |
40.6%
|
| 3 | No | 153 |
6.1%
|
| 4 | Don't know | 109 |
4.3%
|
| Sysmiss | 12531 |