| Value | Category | Cases | |
|---|---|---|---|
| 1 | Through the sewerage system | 609 |
2.3%
|
| 2 | Thrown into gutter | 4267 |
16.2%
|
| 3 | Thrown onto compound | 5444 |
20.7%
|
| 4 | Thrown onto outside compound | 15781 |
59.9%
|
| 6 | Other | 228 |
0.9%
|