| Value | Category | Cases | |
|---|---|---|---|
| 0 | No | 4635 |
60.9%
|
| 1 | Yes | 2684 |
35.3%
|
| 8 | Don't know | 286 |
3.8%
|
| 9 | Missing | 15 | |
| Sysmiss | 365 |