| Value | Category | Cases | Weighted | |
|---|---|---|---|---|
| 1 | Never | 2486 | 7517798 |
23.7%
|
| 2 | 1-3 times | 7424 | 21651070 |
68.2%
|
| 3 | 3+ times | 993 | 2543996 |
8%
|
| 99 | Not stated | 13 | 55053 |
0.2%
|