| Value | Category | Cases | Weighted | |
|---|---|---|---|---|
| -9 | 11 | 15046 |
0%
|
|
| 1 | Straw | 859 | 2379484 |
3.9%
|
| 2 | mud | 263 | 753184 |
1.2%
|
| 3 | wood | 5405 | 16487208 |
27.3%
|
| 4 | galvanised iron | 142 | 230071 |
0.4%
|
| 5 | reinforced concrete | 17081 | 39969269 |
66.1%
|
| 6 | tiles | 166 | 437817 |
0.7%
|
| 7 | other | 70 | 221094 |
0.4%
|