| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 162 |
26.9%
|
| 2 | no | 420 |
69.7%
|
| 3 | (dk) | 14 |
2.3%
|
| 4 | (ref) | 7 |
1.2%
|
| Sysmiss | 399 |