| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 1069 |
89.1%
|
| 1 | Only once | 38 |
3.2%
|
| 2 | A few times | 47 |
3.9%
|
| 3 | Often | 32 |
2.7%
|
| 8 | Refused | 2 |
0.2%
|
| 9 | Don’t know | 12 |
1%
|