| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 1212 |
50.5%
|
| 1 | Once or twice | 353 |
14.7%
|
| 2 | A few times | 398 |
16.6%
|
| 3 | Often | 432 |
18%
|
| 8 | Refused | 2 |
0.1%
|
| 9 | Don't know | 3 |
0.1%
|