| Value | Category | Cases | |
|---|---|---|---|
| 1 | Reinforced concrete | 36656 |
87.3%
|
| 2 | Iron | 3884 |
9.2%
|
| 3 | Corrugated roofing | 547 |
1.3%
|
| 4 | Wood | 45 |
0.1%
|
| 5 | Tarp/cloth | 782 |
1.9%
|
| 97 | Other (specify) | 98 |
0.2%
|
| 98 | Don't know | 0 |
0%
|