| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 141 |
17.2%
|
| 2 | no | 610 |
74.6%
|
| 3 | (dk) | 66 |
8.1%
|
| 4 | (ref) | 1 |
0.1%
|
| Sysmiss | 182 |