| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 867 |
54.2%
|
| 1 | Once or twice | 298 |
18.6%
|
| 2 | A few times | 254 |
15.9%
|
| 3 | Often | 180 |
11.3%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don't know | 1 |
0.1%
|