| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes, written contract | 36 |
1.2%
|
| 2 | yes, oral contract | 73 |
2.4%
|
| 3 | no | 172 |
5.6%
|
| 98 | don't know | 10 |
0.3%
|
| Missing value | 2764 |
90.5%
|