| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 1078 |
45.1%
|
| 1 | Only once | 342 |
14.3%
|
| 2 | A few times | 467 |
19.5%
|
| 3 | Often | 335 |
14%
|
| 8 | Refused | 55 |
2.3%
|
| 9 | Don’t know | 115 |
4.8%
|