| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 39 |
12.7%
|
| 2 | no | 266 |
86.9%
|
| 3 | (dk) | 1 |
0.3%
|
| 4 | (ref) | 0 |
0%
|
| Sysmiss | 694 |