| Value | Category | Cases | |
|---|---|---|---|
| 1 | Cement | 989 |
26.3%
|
| 2 | Dont Know | 2 |
0.1%
|
| 3 | Fabric or Plastic Sheeting | 712 |
18.9%
|
| 4 | Iron/Zinc | 236 |
6.3%
|
| 5 | Other | 4 |
0.1%
|
| 6 | Raw Concrete | 1486 |
39.5%
|
| 7 | Refuse to answer | 1 |
0%
|
| 8 | Wood | 334 |
8.9%
|