| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 0 | no net | 1071 |
77.2%
|
| 1 | only treated nets | 198 |
14.3%
|
| 2 | both treated and untreated nets | 1 |
0.1%
|
| 3 | only untreated nets | 117 |
8.4%
|
| Sysmiss | 581 |