| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 180 |
33.4%
|
| 2 | no | 328 |
60.9%
|
| 3 | (dk) | 25 |
4.6%
|
| 4 | (ref) | 6 |
1.1%
|
| Sysmiss | 461 |