| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know | 82 |
2%
|
| -8 | Refused | 40 |
1%
|
| -5 | Not applicable | 0 |
0%
|
| -3 | Missing | 0 |
0%
|
| 1 | Limited duration | 546 |
13.6%
|
| 2 | Unspecified duration | 1259 |
31.3%
|
| 3 | Permanent | 2090 |
52%
|
| Sysmiss | 17857 |