| Value | Category | Cases | |
|---|---|---|---|
| 0 | No | 1631 |
10.5%
|
| 1 | Yes | 12674 |
81.9%
|
| 8 | Don't know | 1166 |
7.5%
|
| 9 | Missing | 15 | |
| Sysmiss | 1236 |