| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 473 |
57.8%
|
| 2 | no | 328 |
40%
|
| 3 | (dk) | 11 |
1.3%
|
| 4 | (ref) | 7 |
0.9%
|
| Sysmiss | 181 |