| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 940 |
78.3%
|
| 1 | Only once | 48 |
4%
|
| 2 | A few times | 104 |
8.7%
|
| 3 | Often | 108 |
9%
|
| 9 | Don't know | 0 |
0%
|
| 98 | Refused | 0 |
0%
|