| Value | Category | Cases | |
|---|---|---|---|
| 1 | SAND | 123 |
3.9%
|
| 2 | SMOOTHED MUD | 1845 |
58.1%
|
| 3 | SMOOTH CEMENT | 1182 |
37.2%
|
| 4 | WOOD | 2 |
0.1%
|
| 5 | TILE | 23 |
0.7%
|
| 6 | OTHER(SPECIFY) | 3 |
0.1%
|