| Value | Category | Cases | |
|---|---|---|---|
| 1 | Public network | 5568 |
22.2%
|
| 2 | Septic tank | 13415 |
53.4%
|
| 3 | Covered drain | 3233 |
12.9%
|
| 4 | Open drain | 2763 |
11%
|
| 5 | Other | 157 |
0.6%
|
| Sysmiss | 10 |