| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 1006 |
83.8%
|
| 1 | Only once | 65 |
5.4%
|
| 2 | A few times | 89 |
7.4%
|
| 3 | Often | 34 |
2.8%
|
| 8 | Refused | 1 |
0.1%
|
| 9 | Don’t know | 5 |
0.4%
|