| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 1122 |
93.5%
|
| 1 | Once | 62 |
5.2%
|
| 2 | Twice | 10 |
0.8%
|
| 3 | Three or more times | 6 |
0.5%
|
| 9 | Don't know / Can't remember | 0 |
0%
|
| 98 | Refused | 0 |
0%
|