| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 109 |
20.8%
|
| 2 | no | 408 |
78%
|
| 3 | (dk) | 5 |
1%
|
| 4 | (ref) | 1 |
0.2%
|
| Sysmiss | 477 |