| Value | Category | Cases | Weighted | |
|---|---|---|---|---|
| 1 | Never | 927 | 2927409 |
9.2%
|
| 2 | 1-3 times | 6759 | 20126776 |
63.4%
|
| 3 | 3+ times | 3217 | 8658679 |
27.3%
|
| 99 | Not stated | 13 | 55053 |
0.2%
|