| Value | Category | Cases | |
|---|---|---|---|
| 0 | Not given | 686 |
50.8%
|
| 2556 | 39 |
2.9%
|
|
| 2557 | 122 |
9%
|
|
| 2558 | 135 |
10%
|
|
| 2559 | 15 |
1.1%
|
|
| 4444 | Marked on card | 10 |
0.7%
|
| Sysmiss | 344 |
25.5%
|