| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 2 |
0.1%
|
| 0 | Never | 1834 |
76.5%
|
| 1 | Only once | 282 |
11.8%
|
| 2 | A few times | 222 |
9.3%
|
| 3 | Often | 55 |
2.3%
|
| 9 | Don’t know | 2 |
0.1%
|
| 98 | Refused | 0 |
0%
|