| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 2 |
0.2%
|
| 0 | Never | 1021 |
85.2%
|
| 1 | Only once | 69 |
5.8%
|
| 2 | A few times | 62 |
5.2%
|
| 3 | Often | 38 |
3.2%
|
| 9 | Don't know | 7 |
0.6%
|
| 98 | Refused | 0 |
0%
|