| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 385 |
72.8%
|
| 2 | no | 137 |
25.9%
|
| 3 | (dk) | 2 |
0.4%
|
| 4 | (ref) | 5 |
0.9%
|
| Sysmiss | 471 |