| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 926 |
77.2%
|
| 1 | Only once | 95 |
7.9%
|
| 2 | A few times | 115 |
9.6%
|
| 3 | Often | 40 |
3.3%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don’t know | 24 |
2%
|