| Value | Category | Cases | |
|---|---|---|---|
| 0 | No | 4216 |
55.4%
|
| 1 | Yes | 3172 |
41.7%
|
| 8 | Don't know | 216 |
2.8%
|
| 9 | Missing | 16 | |
| Sysmiss | 365 |