| Value | Category | Cases | |
|---|---|---|---|
| 0 | No | 3822 |
50.2%
|
| 1 | Yes | 3594 |
47.2%
|
| 8 | Don't know | 198 |
2.6%
|
| 9 | Missing | 6 | |
| Sysmiss | 365 |