| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 99 |
23.2%
|
| 2 | no | 313 |
73.5%
|
| 3 | (dk) | 10 |
2.3%
|
| 4 | (ref) | 4 |
0.9%
|
| Sysmiss | 574 |