| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 345 |
35.4%
|
| 2 | no | 498 |
51.1%
|
| 3 | (dk) | 130 |
13.3%
|
| 4 | (ref) | 2 |
0.2%
|
| Sysmiss | 26 |