| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 1074 |
87.2%
|
| 1 | Only once | 60 |
4.9%
|
| 2 | A few times | 61 |
5%
|
| 3 | Often | 19 |
1.5%
|
| 9 | Don't know | 18 |
1.5%
|
| 998 | Refused | 0 |
0%
|