| Value | Category | Cases | |
|---|---|---|---|
| 1 | Straw | 595 |
1%
|
| 2 | Mud | 1133 |
1.9%
|
| 3 | Wood | 6205 |
10.1%
|
| 4 | Steel (galvanised) | 266 |
0.4%
|
| 5 | Reinforced concrete | 53001 |
86.6%
|
| 6 | Tiles | 31 |
0.1%
|
| 97 | Other | 0 |
0%
|