| Value | Category | Cases | |
|---|---|---|---|
| 1 | Mud | 167 |
60.3%
|
| 2 | Concrete | 110 |
39.7%
|
| 3 | Other | 0 |
0%
|
| 4 | Tiles | 0 |
0%
|
| 8 | Unknown | 0 |
0%
|
| 9 | Missing | 0 |