| Value | Category | Cases | |
|---|---|---|---|
| 0 | no net | 2031 |
36.5%
|
| 1 | only treated nets | 3469 |
62.4%
|
| 2 | both treated and untreated nets | 0 |
0%
|
| 3 | only untreated nets | 60 |
1.1%
|