| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 115 |
15.4%
|
| 2 | no | 621 |
83%
|
| 3 | (dk) | 12 |
1.6%
|
| 4 | (ref) | 0 |
0%
|
| Sysmiss | 252 |