| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 46 |
9.5%
|
| 2 | no | 413 |
85.3%
|
| 3 | (dk) | 23 |
4.8%
|
| 4 | (ref) | 2 |
0.4%
|
| Sysmiss | 516 |