| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 15 |
1.3%
|
| 0 | Never | 904 |
75.3%
|
| 1 | Once | 148 |
12.3%
|
| 2 | Twice | 61 |
5.1%
|
| 3 | Three or more times | 27 |
2.3%
|
| 9 | Do not know / Can’t remember | 44 |
3.7%
|
| 98 | Refused | 1 |
0.1%
|