| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 478 |
39.7%
|
| 1 | Once or twice | 218 |
18.1%
|
| 2 | A few times | 293 |
24.3%
|
| 3 | Often | 210 |
17.4%
|
| 8 | Refused | 2 |
0.2%
|
| 9 | Don't know | 3 |
0.2%
|