| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 0 | No net | 4 |
80%
|
| 1 | Only treated nets | 1 |
20%
|
| 2 | Both treated and untreated nets | 0 |
0%
|
| 3 | Only untreated nets | 0 |
0%
|
| Sysmiss | 869 |