| Value | Category | Cases | |
|---|---|---|---|
| -999 | Don't know | 0 |
0%
|
| -888 | Refuse to answer | 0 |
0%
|
| -666 | Other (please specify) | 3 |
1.1%
|
| 1 | Yes, there was a formal written contract | 20 |
7.4%
|
| 2 | No, it was a verbal agreement | 246 |
91.4%
|
| Sysmiss | 5097 |