| Value | Category | Cases | |
|---|---|---|---|
| 1 | No measures | 12544 |
86%
|
| 2 | Rainwater tank from roof | 322 |
2.2%
|
| 3 | Ditch | 1273 |
8.7%
|
| 4 | Piped away | 238 |
1.6%
|
| 5 | Other | 203 |
1.4%
|