| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 184 |
25.4%
|
| 2 | no | 518 |
71.4%
|
| 3 | (dk) | 22 |
3%
|
| 4 | (ref) | 1 |
0.1%
|
| Sysmiss | 275 |