| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | No | 1957 |
81.5%
|
| 1 | Yes | 438 |
18.3%
|
| 8 | Refused | 2 |
0.1%
|
| 9 | Don't know | 3 |
0.1%
|