| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 3040 |
46.8%
|
| 2 | no | 373 |
5.7%
|
| 3 | I do not know | 12 |
0.2%
|
| 4 | not applicable | 136 | |
| Sysmiss | 2939 |