| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 0 | no net | 8627 |
50.5%
|
| 1 | only treated nets | 7488 |
43.8%
|
| 2 | both treated and untreated nets | 0 |
0%
|
| 3 | only untreated nets | 972 |
5.7%
|