| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 1154 |
72.2%
|
| 1 | Only once | 163 |
10.2%
|
| 2 | A few times | 167 |
10.4%
|
| 3 | Often | 109 |
6.8%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don’t know | 6 |
0.4%
|