| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 2 |
0.2%
|
| 0 | No | 619 |
56.1%
|
| 1 | Yes | 474 |
42.9%
|
| 8 | Refused | 3 |
0.3%
|
| 9 | Don't know | 6 |
0.5%
|