| Value | Category | Cases | |
|---|---|---|---|
| 0 | No | 21573 |
64.8%
|
| 1 | Yes | 10717 |
32.2%
|
| 8 | Don't know | 1004 |
3%
|
| 9 | Missing | 91 | |
| Sysmiss | 1211 |