| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 0 | no net | 3409 |
44.7%
|
| 1 | only treated nets | 4107 |
53.8%
|
| 2 | both treated and untreated nets | 0 |
0%
|
| 3 | only untreated nets | 112 |
1.5%
|