| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 266 |
32.1%
|
| 2 | no | 531 |
64.1%
|
| 3 | (dk) | 25 |
3%
|
| 4 | (ref) | 7 |
0.8%
|
| Sysmiss | 178 |