| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 131 |
15.9%
|
| 2 | no | 659 |
80%
|
| 3 | (dk) | 34 |
4.1%
|
| 4 | (ref) | 0 |
0%
|
| Sysmiss | 176 |