| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 726 |
60.5%
|
| 1 | Only once | 198 |
16.5%
|
| 2 | A few times | 175 |
14.6%
|
| 3 | Often | 99 |
8.3%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don’t know | 2 |
0.2%
|