| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 1224 |
76.5%
|
| 1 | Only once | 151 |
9.4%
|
| 2 | A few times | 140 |
8.8%
|
| 3 | Often | 78 |
4.9%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don’t know | 6 |
0.4%
|