| Value | Category | Cases | |
|---|---|---|---|
| 0 | no net | 1157 |
38.3%
|
| 1 | only treated nets | 1834 |
60.8%
|
| 2 | both treated and untreated nets | 0 |
0%
|
| 3 | only untreated nets | 26 |
0.9%
|