| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 94 |
13.4%
|
| 2 | no | 602 |
85.6%
|
| 3 | (dk) | 6 |
0.9%
|
| 4 | (ref) | 1 |
0.1%
|
| Sysmiss | 298 |