| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 620 |
6.9%
|
| 2 | no | 6032 |
67.1%
|
| 3 | don't know | 459 |
5.1%
|
| 4 | n.a. | 1876 |
20.9%
|
| Sysmiss | 40199 |