| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 0 | no net | 2852 |
23.1%
|
| 1 | only treated nets | 9311 |
75.4%
|
| 2 | both treated and untreated nets | 0 |
0%
|
| 3 | only untreated nets | 180 |
1.5%
|