| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 156 |
21.6%
|
| 2 | no | 554 |
76.6%
|
| 3 | (dk) | 13 |
1.8%
|
| 4 | (ref) | 0 |
0%
|
| Sysmiss | 277 |