| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 1 |
0.1%
|
| 0 | No | 508 |
42.3%
|
| 1 | Yes | 667 |
55.6%
|
| 8 | Refused | 4 |
0.3%
|
| 9 | Don't know | 20 |
1.7%
|