| Value | Category | Cases | |
|---|---|---|---|
| 1 | Correct | 467 |
10.6%
|
| 2 | Not correct | 616 |
14%
|
| 8 | Don't know | 18 |
0.4%
|
| 9 | No answer | 9 |
0.2%
|
| Sysmiss | 3281 |
74.7%
|