| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 1009 |
84.2%
|
| 1 | Only once | 77 |
6.4%
|
| 2 | A few times | 71 |
5.9%
|
| 3 | Often | 39 |
3.3%
|
| 9 | Don't know | 2 |
0.2%
|
| 98 | Refused | 0 |
0%
|