| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 571 |
47.6%
|
| 1 | Only once | 86 |
7.2%
|
| 2 | A few times | 230 |
19.2%
|
| 3 | Often | 310 |
25.8%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don’t know | 3 |
0.3%
|