| Value | Category | Cases | |
|---|---|---|---|
| 1 | CONCRETE | 106 |
4.7%
|
| 2 | WOOD / LOGS | 7 |
0.3%
|
| 3 | CLAY / SAMAN | 1075 |
47.5%
|
| 4 | SOIL | 1060 |
46.9%
|
| 999 | OTHER, SPECIFY | 14 |
0.6%
|