| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 690 |
57.5%
|
| 1 | Once or twice | 151 |
12.6%
|
| 2 | A few times | 189 |
15.8%
|
| 3 | Often | 160 |
13.3%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don't know | 10 |
0.8%
|