| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 12753 |
18.6%
|
| 2 | no | 52351 |
76.6%
|
| 3 | (dk) | 2719 |
4%
|
| 4 | (ref) | 563 |
0.8%
|
| Sysmiss | 86537 |