| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 12 |
40%
|
| 2 | no | 17 |
56.7%
|
| 3 | (dk) | 1 |
3.3%
|
| 4 | (ref) | 0 |
0%
|
| Sysmiss | 973 |