| Value | Category | Cases | |
|---|---|---|---|
| 1 | No measures | 2223 |
90.4%
|
| 2 | Rainwater tank from roof | 23 |
0.9%
|
| 3 | Ditch | 161 |
6.5%
|
| 4 | Piped away | 25 |
1%
|
| 5 | Other | 28 |
1.1%
|
| 9 | Missing | 0 |
0%
|