| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 78 |
11.4%
|
| 2 | no | 601 |
87.6%
|
| 3 | (dk) | 7 |
1%
|
| 4 | (ref) | 0 |
0%
|
| Sysmiss | 314 |