| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes, underground drains | 143 |
2.4%
|
| 2 | Yes, open drains | 15 |
0.2%
|
| 3 | Yes, soak pits | 2769 |
45.8%
|
| 4 | Yes, other | 2941 |
48.6%
|
| 5 | No | 183 |
3%
|