| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 93 |
16.3%
|
| 2 | no | 467 |
81.6%
|
| 3 | (dk) | 5 |
0.9%
|
| 4 | (ref) | 7 |
1.2%
|
| Sysmiss | 428 |