| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes,soap /detergent | 655 | 
                                    
                                    67.4%
                                 | 
| 2 | Yes, ash | 82 | 
                                    
                                    8.4%
                                 | 
| 3 | mud/sand | 4 | 
                                    
                                    0.4%
                                 | 
| 4 | no | 231 | 
                                    
                                    23.8%
                                 | 
| Sysmiss | 3982 |