| Value | Category | Cases | |
|---|---|---|---|
| 1 | Reinforced concrete | 30097 |
90%
|
| 2 | Iron | 2864 |
8.6%
|
| 3 | Corrugated roofing | 88 |
0.3%
|
| 4 | Wood | 20 |
0.1%
|
| 5 | Tarp/cloth | 336 |
1%
|
| 97 | Other (specify) | 21 |
0.1%
|
| 98 | Don't know | 7 |
0%
|
| Sysmiss | 17 |