| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 | 
                                    
                                    0%
                                 | 
| 1 | Earth | 584 | 
                                    
                                    48.7%
                                 | 
| 2 | Gravel | 176 | 
                                    
                                    14.7%
                                 | 
| 3 | Stone | 32 | 
                                    
                                    2.7%
                                 | 
| 4 | Muram | 8 | 
                                    
                                    0.7%
                                 | 
| 5 | Paved/ Tarred | 400 | 
                                    
                                    33.3%
                                 | 
| 6 | Concrete | 0 | 
                                    
                                    0%
                                 |