| Value | Category | Cases | |
|---|---|---|---|
| 0 | no net | 2390 |
44.3%
|
| 1 | only treated nets | 2894 |
53.7%
|
| 2 | both treated and untreated nets | 0 |
0%
|
| 3 | only untreated nets | 110 |
2%
|