| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 646 |
76.3%
|
| 2 | no | 181 |
21.4%
|
| 3 | (dk) | 20 |
2.4%
|
| 4 | (ref) | 0 |
0%
|
| Sysmiss | 153 |