| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 1 |
0.1%
|
| 0 | No | 822 |
68.5%
|
| 1 | Yes | 293 |
24.4%
|
| 8 | Refused | 14 |
1.2%
|
| 9 | Don't know | 70 |
5.8%
|