| Value | Category | Cases | |
|---|---|---|---|
| 0 | no net | 792 |
51.1%
|
| 1 | only treated nets | 745 |
48%
|
| 2 | both treated and untreated nets | 0 |
0%
|
| 3 | only untreated nets | 14 |
0.9%
|
| Sysmiss | 13083 |