| Value | Category | Cases | |
|---|---|---|---|
| 0 | no net | 3248 |
42.9%
|
| 1 | only treated nets | 4244 |
56.1%
|
| 2 | both treated and untreated nets | 2 |
0%
|
| 3 | only untreated nets | 76 |
1%
|
| Sysmiss | 522 |