| Value | Category | Cases | Weighted | |
|---|---|---|---|---|
| 1 | Concrete or cement | 3481 | 1089042 |
43.5%
|
| 2 | Tile | 13 | 4102 |
0.2%
|
| 3 | Asphalt/laminate | 8 | 2168 |
0.1%
|
| 4 | Slate | 144 | 46373 |
1.9%
|
| 5 | Metal | 3039 | 948827 |
37.9%
|
| 6 | Wood | 155 | 49640 |
2%
|
| 7 | Thatch | 615 | 192941 |
7.7%
|
| 8 | Scrap | 169 | 51502 |
2.1%
|
| 9 | Other | 376 | 117156 |
4.7%
|