| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | No | 1945 |
81%
|
| 1 | Yes | 448 |
18.7%
|
| 8 | Refused | 1 |
0%
|
| 9 | Don't know | 6 |
0.3%
|