| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 1 |
0.1%
|
| 0 | Never | 842 |
76.3%
|
| 1 | Only once | 81 |
7.3%
|
| 2 | A few times | 103 |
9.3%
|
| 3 | Often | 74 |
6.7%
|
| 9 | Don't know | 3 |
0.3%
|
| 98 | Refused | 0 |
0%
|