| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 989 |
29.1%
|
| 2 | no | 2186 |
64.3%
|
| 8 | don't know | 189 |
5.6%
|
| 9 | refused | 35 |
1%
|
| Sysmiss | 2920 |