| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 0 | no net | 11993 |
24.6%
|
| 1 | only treated nets | 36053 |
74%
|
| 2 | both treated and untreated nets | 0 |
0%
|
| 3 | only untreated nets | 699 |
1.4%
|