| Value | Category | Cases | |
|---|---|---|---|
| 1 | Nothing | 65 | 
                                                                 
                                    
                                    9.5%
                                 
                                                             | 
                                                        
                    
| 2 | Ash | 162 | 
                                                                 
                                    
                                    23.7%
                                 
                                                             | 
                                                        
                    
| 3 | Sand | 7 | 
                                                                 
                                    
                                    1%
                                 
                                                             | 
                                                        
                    
| 4 | Soap | 213 | 
                                                                 
                                    
                                    31.1%
                                 
                                                             | 
                                                        
                    
| 5 | Water only | 237 | 
                                                                 
                                    
                                    34.6%
                                 
                                                             |