| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 51 |
15.9%
|
| 2 | no | 268 |
83.5%
|
| 3 | (dk) | 2 |
0.6%
|
| 4 | (ref) | 0 |
0%
|
| Sysmiss | 679 |