| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | No | 1977 |
82.7%
|
| 1 | Yes | 328 |
13.7%
|
| 8 | Refused | 74 |
3.1%
|
| 9 | Don't know | 13 |
0.5%
|