| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 3933 |
7.2%
|
| 2 | no | 50668 |
92.1%
|
| 3 | (dk) | 307 |
0.6%
|
| 4 | (ref) | 89 |
0.2%
|
| Sysmiss | 99926 |