| Value | Category | Cases | |
|---|---|---|---|
| 1 | Cement | 965 |
26.3%
|
| 2 | Fabric or Plastic Sheeting | 1030 |
28.1%
|
| 3 | Iron/Zinc | 210 |
5.7%
|
| 4 | Other | 2 |
0.1%
|
| 5 | Raw Concrete | 1205 |
32.9%
|
| 6 | Wood | 254 |
6.9%
|