| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 220 |
30.9%
|
| 2 | no | 445 |
62.4%
|
| 3 | (dk) | 46 |
6.5%
|
| 4 | (ref) | 2 |
0.3%
|
| Sysmiss | 287 |