| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 1927 |
80.3%
|
| 1 | Only once | 139 |
5.8%
|
| 2 | A few times | 218 |
9.1%
|
| 3 | Often | 108 |
4.5%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don’t know | 8 |
0.3%
|