| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 0 | No net | 1453 |
38.6%
|
| 1 | Only treated nets | 2089 |
55.4%
|
| 2 | Both treated and untreated nets | 0 |
0%
|
| 3 | Only untreated nets | 227 |
6%
|
| Sysmiss | 1319 |