| Value | Category | Cases | |
|---|---|---|---|
| 1 | Concrete cement | 377 |
7.9%
|
| 2 | Tile | 2262 |
47.1%
|
| 3 | Galvanized iron | 508 |
10.6%
|
| 4 | Slate/asbestos | 86 |
1.8%
|
| 5 | Canvas | 25 |
0.5%
|
| 6 | Wood/bamboo | 39 |
0.8%
|
| 7 | Straw, thatch, grass | 1484 |
30.9%
|
| 8 | Other | 19 |
0.4%
|