| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 1661 |
6.9%
|
| 2 | no | 22157 |
92.5%
|
| 3 | (dk) | 89 |
0.4%
|
| 4 | (ref) | 49 |
0.2%
|
| Sysmiss | 122732 |