| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 927 |
77.3%
|
| 1 | Only once | 75 |
6.3%
|
| 2 | A few times | 123 |
10.3%
|
| 3 | Often | 71 |
5.9%
|
| 9 | Don't know | 4 |
0.3%
|
| 98 | Refused | 0 |
0%
|