| Value | Category | Cases | |
|---|---|---|---|
| 1 | Earth, Mud | 351 | 
                                    
                                    37.5%
                                 | 
| 2 | Wood Tile | 10 | 
                                    
                                    1.1%
                                 | 
| 3 | Cement, Concrete | 479 | 
                                    
                                    51.2%
                                 | 
| 4 | Plastic Tile | 71 | 
                                    
                                    7.6%
                                 | 
| 5 | Cement/Ceramic Tile | 23 | 
                                    
                                    2.5%
                                 | 
| 6 | Other | 1 | 
                                    
                                    0.1%
                                 |