| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 1811 |
13.9%
|
| 2 | no | 11196 |
85.9%
|
| 3 | (dk) | 25 |
0.2%
|
| 4 | (ref) | 9 |
0.1%
|
| Sysmiss | 130846 |