| Value | Category | Cases | |
|---|---|---|---|
| 1 | Earth/Sand | 804242 |
77.8%
|
| 2 | Concrete | 207349 |
20.1%
|
| 3 | Stone | 8826 |
0.9%
|
| 4 | Burn Bricks | 11729 |
1.1%
|
| 5 | Timber | 725 |
0.1%
|
| 6 | Other | 1207 |
0.1%
|
| 9 | 4291 |