| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 128 |
23.7%
|
| 2 | no | 386 |
71.6%
|
| 3 | (dk) | 10 |
1.9%
|
| 4 | (ref) | 15 |
2.8%
|
| Sysmiss | 461 |