| Value | Category | Cases | |
|---|---|---|---|
| 1 | Marble, tile | 428 |
8.9%
|
| 2 | Brick | 637 |
13.3%
|
| 3 | Cement | 690 |
14.4%
|
| 4 | Mortar | 317 |
6.6%
|
| 5 | Earth | 2415 |
50.3%
|
| 6 | Wood | 218 |
4.5%
|
| 7 | Bamboo | 84 |
1.8%
|
| 8 | Other | 11 |
0.2%
|