| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 1081 |
90.1%
|
| 1 | Only once | 36 |
3%
|
| 2 | A few times | 61 |
5.1%
|
| 3 | Often | 21 |
1.8%
|
| 9 | Don't know | 1 |
0.1%
|
| 98 | Refused | 0 |
0%
|