| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 38 |
10.3%
|
| 2 | no | 327 |
88.4%
|
| 3 | (dk) | 5 |
1.4%
|
| 4 | (ref) | 0 |
0%
|
| Sysmiss | 1641 |