| Value | Category | Cases | |
|---|---|---|---|
| 0 | no net | 36 |
36.7%
|
| 1 | only treated nets | 59 |
60.2%
|
| 2 | both treated and untreated nets | 0 |
0%
|
| 3 | only untreated nets | 3 |
3.1%
|
| Sysmiss | 5296 |