| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 4 |
0.3%
|
| 0 | Never | 734 |
61.2%
|
| 1 | Only once | 193 |
16.1%
|
| 2 | A few times | 160 |
13.3%
|
| 3 | Often | 100 |
8.3%
|
| 9 | Don't know | 8 |
0.7%
|
| 98 | Refused | 0 |
0%
|