| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 13 |
46.4%
|
| 2 | no | 14 |
50%
|
| 3 | (dk) | 0 |
0%
|
| 4 | (ref) | 1 |
3.6%
|
| Sysmiss | 978 |