| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 599 |
64.8%
|
| 2 | no | 289 |
31.3%
|
| 3 | (dk) | 2 |
0.2%
|
| 4 | (ref) | 34 |
3.7%
|
| Sysmiss | 81 |