| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 310 |
41.4%
|
| 2 | no | 408 |
54.5%
|
| 3 | (dk) | 30 |
4%
|
| 4 | (ref) | 0 |
0%
|
| Sysmiss | 252 |