| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 74 |
12.1%
|
| 2 | no | 526 |
85.9%
|
| 3 | (dk) | 12 |
2%
|
| 4 | (ref) | 0 |
0%
|
| Sysmiss | 388 |