| Value | Category | Cases | Weighted | |
|---|---|---|---|---|
| 0 | None | 9937 | 28616856 |
90.1%
|
| 1 | Yes, tried | 694 | 2299357 |
7.2%
|
| 2 | Yes, regularly | 272 | 796651 |
2.5%
|
| 99 | Not stated | 13 | 55053 |
0.2%
|