| Value | Category | Cases | |
|---|---|---|---|
| 1 | No measures | 3282 |
87%
|
| 2 | Rainwater tank from roof | 183 |
4.9%
|
| 3 | Ditch | 254 |
6.7%
|
| 4 | Piped away | 47 |
1.2%
|
| 5 | Other(specify) | 5 |
0.1%
|