| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 1 |
0.1%
|
| 0 | Never | 821 |
68.5%
|
| 1 | Only once | 161 |
13.4%
|
| 2 | A few times | 129 |
10.8%
|
| 3 | Often | 66 |
5.5%
|
| 9 | Don’t know | 20 |
1.7%
|
| 98 | Refused | 0 |
0%
|