| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 2 |
0.1%
|
| 0 | Never | 1824 |
76.1%
|
| 1 | Only once | 173 |
7.2%
|
| 2 | A few times | 241 |
10.1%
|
| 3 | Often | 117 |
4.9%
|
| 9 | Don't know | 41 |
1.7%
|
| 98 | Refused | 0 |
0%
|