| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 123 |
25.8%
|
| 2 | no | 339 |
71.2%
|
| 3 | (dk) | 12 |
2.5%
|
| 4 | (ref) | 2 |
0.4%
|
| Sysmiss | 524 |