| Value | Category | Cases | |
|---|---|---|---|
| 1 | no | 2830 |
86.5%
|
| 2 | yes | 362 |
11.1%
|
| 8 | don't know | 75 |
2.3%
|
| 9 | refused | 6 |
0.2%
|
| Sysmiss | 1987 |