| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 0 | no net | 365 |
23%
|
| 1 | only treated nets | 1201 |
75.5%
|
| 2 | both treated and untreated nets | 1 |
0.1%
|
| 3 | only untreated nets | 23 |
1.4%
|
| Sysmiss | 6521 |