| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 786 |
65.6%
|
| 1 | Only once | 78 |
6.5%
|
| 2 | A few times | 138 |
11.5%
|
| 3 | Often | 177 |
14.8%
|
| 9 | Don't know | 20 |
1.7%
|
| 98 | Refused | 0 |
0%
|