| Value | Category | Cases | Weighted | |
|---|---|---|---|---|
| 1 | Never | 1164 | 3409546 |
10.7%
|
| 2 | 1-3 times | 6943 | 20401876 |
64.2%
|
| 3 | 3+ times | 2796 | 7901442 |
24.9%
|
| 99 | Not stated | 13 | 55053 |
0.2%
|