| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 1682 |
70.1%
|
| 1 | Only once | 189 |
7.9%
|
| 2 | A few times | 318 |
13.3%
|
| 3 | Often | 205 |
8.5%
|
| 8 | Refused | 1 |
0%
|
| 9 | Don’t know | 5 |
0.2%
|