| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 257 |
36.2%
|
| 2 | no | 418 |
58.9%
|
| 3 | (dk) | 28 |
3.9%
|
| 4 | (ref) | 7 |
1%
|
| Sysmiss | 290 |