| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 1 |
0.1%
|
| 0 | Never | 730 |
61%
|
| 1 | Only once | 66 |
5.5%
|
| 2 | A few times | 163 |
13.6%
|
| 3 | Often | 227 |
19%
|
| 9 | Don't know | 9 |
0.8%
|
| 98 | Refused | 0 |
0%
|