| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 182 |
25.7%
|
| 2 | no | 461 |
65.2%
|
| 3 | (dk) | 62 |
8.8%
|
| 4 | (ref) | 2 |
0.3%
|
| Sysmiss | 293 |