| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 570 |
72.2%
|
| 2 | no | 216 |
27.3%
|
| 3 | (dk) | 4 |
0.5%
|
| 4 | (ref) | 0 |
0%
|
| Sysmiss | 210 |