| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 91 |
34.5%
|
| 2 | no | 163 |
61.7%
|
| 3 | (dk) | 4 |
1.5%
|
| 4 | (ref) | 6 |
2.3%
|
| Sysmiss | 737 |