| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 224 |
29.6%
|
| 2 | no | 503 |
66.4%
|
| 3 | (dk) | 25 |
3.3%
|
| 4 | (ref) | 6 |
0.8%
|
| Sysmiss | 242 |