| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 3 |
0.3%
|
| 0 | Never | 771 |
64.3%
|
| 1 | Only once | 186 |
15.5%
|
| 2 | A few times | 155 |
12.9%
|
| 3 | Often | 72 |
6%
|
| 9 | Don't know | 12 |
1%
|
| 98 | Refused | 0 |
0%
|