| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 423 |
20.8%
|
| 2 | no | 512 |
25.2%
|
| 3 | I do not know | 896 |
44.2%
|
| 4 | not sure | 198 |
9.8%
|
| Sysmiss | 20 |