| Value | Category | Cases | |
|---|---|---|---|
| 0 | Not given | 903 |
66.8%
|
| 2556 | 4 |
0.3%
|
|
| 2557 | 2 |
0.1%
|
|
| 2558 | 82 |
6.1%
|
|
| 2559 | 8 |
0.6%
|
|
| 4444 | Marked on card | 8 |
0.6%
|
| Sysmiss | 344 |
25.5%
|