| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 123 |
25.6%
|
| 2 | no | 353 |
73.4%
|
| 3 | (dk) | 5 |
1%
|
| 4 | (ref) | 0 |
0%
|
| Sysmiss | 521 |