| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 138 |
24.7%
|
| 2 | no | 367 |
65.7%
|
| 3 | (dk) | 49 |
8.8%
|
| 4 | (ref) | 5 |
0.9%
|
| Sysmiss | 441 |