| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 2 |
0.2%
|
| 0 | Never | 1046 |
87.5%
|
| 1 | Only once | 37 |
3.1%
|
| 2 | A few times | 59 |
4.9%
|
| 3 | Often | 40 |
3.3%
|
| 9 | Don't know | 12 |
1%
|
| 98 | Refused | 0 |
0%
|