| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 1047 |
87.5%
|
| 1 | Only once | 44 |
3.7%
|
| 2 | A few times | 60 |
5%
|
| 3 | Often | 37 |
3.1%
|
| 9 | Don't know | 9 |
0.8%
|
| 998 | Refused | 0 |
0%
|