| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 30 |
50%
|
| 2 | no | 23 |
38.3%
|
| 3 | (dk) | 6 |
10%
|
| 4 | (ref) | 1 |
1.7%
|
| Sysmiss | 442 |