| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 1739 |
72.5%
|
| 1 | Only once | 229 |
9.5%
|
| 2 | A few times | 248 |
10.3%
|
| 3 | Often | 182 |
7.6%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don’t know | 2 |
0.1%
|