| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 886 |
73.8%
|
| 1 | Only once | 85 |
7.1%
|
| 2 | A few times | 130 |
10.8%
|
| 3 | Often | 95 |
7.9%
|
| 8 | Refused | 3 |
0.3%
|
| 9 | Don’t know | 1 |
0.1%
|