| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 1882 |
78.4%
|
| 1 | Only once | 228 |
9.5%
|
| 2 | A few times | 175 |
7.3%
|
| 3 | Often | 108 |
4.5%
|
| 8 | Refused to answer | 3 |
0.1%
|
| 9 | Don’t know | 4 |
0.2%
|