| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 161 |
29.8%
|
| 2 | no | 368 |
68%
|
| 3 | (dk) | 11 |
2%
|
| 4 | (ref) | 1 |
0.2%
|
| Sysmiss | 467 |