| Value | Category | Cases | |
|---|---|---|---|
| 1 | Concrete/Reinforced concrete | 3414 |
94.6%
|
| 2 | Metal | 80 |
2.2%
|
| 3 | Wood | 0 |
0%
|
| 4 | Asbestos/Fibrous cement | 86 |
2.4%
|
| 5 | Thatch/Palm fronds | 5 |
0.1%
|
| 6 | Other, specify | 20 |
0.6%
|
| Sysmiss | 2 |