| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 236 |
33.2%
|
| 2 | no | 461 |
64.9%
|
| 3 | (dk) | 10 |
1.4%
|
| 4 | (ref) | 3 |
0.4%
|
| Sysmiss | 290 |