| Value | Category | Cases | Weighted | |
|---|---|---|---|---|
| 1 | Never | 3982 | 12315693 |
38.8%
|
| 2 | 1-3 times | 6019 | 17176727 |
54.1%
|
| 3 | 3+ times | 902 | 2220445 |
7%
|
| 99 | Not stated | 13 | 55053 |
0.2%
|