| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 1 |
0.1%
|
| 0 | Never | 745 |
62.1%
|
| 1 | Only once | 60 |
5%
|
| 2 | A few times | 149 |
12.4%
|
| 3 | Often | 244 |
20.3%
|
| 9 | Don't know | 1 |
0.1%
|
| 98 | Refused | 0 |
0%
|