| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 691 |
57.6%
|
| 1 | Only once | 65 |
5.4%
|
| 2 | A few times | 201 |
16.8%
|
| 3 | Often | 240 |
20%
|
| 8 | Refused | 1 |
0.1%
|
| 9 | Don’t know | 2 |
0.2%
|