| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 239 |
29.2%
|
| 2 | no | 550 |
67.2%
|
| 3 | (dk) | 24 |
2.9%
|
| 4 | (ref) | 5 |
0.6%
|
| Sysmiss | 182 |