| Value | Category | Cases | Weighted | |
|---|---|---|---|---|
| 1 | Wastewater network | 476 | 2400 |
67.6%
|
| 2 | Tight cesspit | 135 | 308 |
8.7%
|
| 3 | Porous cesspit | 296 | 824 |
23.2%
|
| 4 | 1 | 5 |
0.1%
|
|
| Sysmiss | 11 | 15 |