| Value | Category | Cases | Weighted | |
|---|---|---|---|---|
| 1 | Wastewater network | 313 | 2124 |
64.9%
|
| 2 | Tight cesspit | 79 | 277 |
8.5%
|
| 3 | Porous cesspit | 328 | 822 |
25.1%
|
| Sysmiss | 15 | 48 |