| Value | Category | Cases | |
|---|---|---|---|
| 0 | No | 148 |
3.4%
|
| 1 | Yes | 3950 |
91.9%
|
| 8 | Don't know / unsure | 202 |
4.7%
|
| 9 | Missing | 43 | |
| Sysmiss | 30253 |