| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 163 |
19.1%
|
| 2 | no | 605 |
71%
|
| 3 | (dk) | 83 |
9.7%
|
| 4 | (ref) | 1 |
0.1%
|
| Sysmiss | 148 |