| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 806 |
67.2%
|
| 1 | Only once | 157 |
13.1%
|
| 2 | A few times | 148 |
12.3%
|
| 3 | Often | 86 |
7.2%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don’t know | 3 |
0.3%
|