| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 577 |
15.4%
|
| 2 | no | 3160 |
84.3%
|
| 8 | don't know | 2 |
0.1%
|
| 9 | refused | 9 |
0.2%
|
| Sysmiss | 687 |