| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 18185 |
26.7%
|
| 2 | no | 45181 |
66.4%
|
| 3 | (dk) | 4140 |
6.1%
|
| 4 | (ref) | 509 |
0.7%
|
| Sysmiss | 78673 |