| Value | Category | Cases | |
|---|---|---|---|
| 0 | 1076 |
22.2%
|
|
| 1 | Pas de traitement | 3487 |
72.1%
|
| 2 | Ébullition | 110 |
2.3%
|
| 3 | Ajout de chlore | 99 |
2%
|
| 4 | Ajout d'iode | 3 |
0.1%
|
| 7 | Autre | 64 |
1.3%
|
| Sysmiss | 3 |