| Value | Category | Cases | |
|---|---|---|---|
| 0 | Not given | 904 |
66.9%
|
| 2556 | 3 |
0.2%
|
|
| 2557 | 3 |
0.2%
|
|
| 2558 | 80 |
5.9%
|
|
| 2559 | 8 |
0.6%
|
|
| 4444 | Marked on card | 9 |
0.7%
|
| Sysmiss | 344 |
25.5%
|