| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 1098 |
91.5%
|
| 1 | Once | 82 |
6.8%
|
| 2 | Twice | 12 |
1%
|
| 3 | Three or more times | 7 |
0.6%
|
| 9 | Don't know / Can't remember | 1 |
0.1%
|
| 98 | Refused | 0 |
0%
|