| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 1538 |
64.1%
|
| 1 | A few times | 343 |
14.3%
|
| 2 | Often | 102 |
4.3%
|
| 8 | Refused | 1 |
0%
|
| 9 | Don’t know | 416 |
17.3%
|