| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 746 |
63.1%
|
| 1 | Only once | 103 |
8.7%
|
| 2 | A few times | 174 |
14.7%
|
| 3 | Often | 149 |
12.6%
|
| 9 | Don't know | 10 |
0.8%
|
| 98 | Refused | 0 |
0%
|