| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 160 |
33.3%
|
| 2 | no | 305 |
63.4%
|
| 3 | (dk) | 16 |
3.3%
|
| 4 | (ref) | 0 |
0%
|
| Sysmiss | 519 |