| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 23 |
69.7%
|
| 2 | no | 9 |
27.3%
|
| 3 | (dk) | 0 |
0%
|
| 4 | (ref) | 1 |
3%
|
| Sysmiss | 972 |