| Value | Category | Cases | |
|---|---|---|---|
| 1 | sur eau | 4 | 
                                    
                                    30.8%
                                 | 
| 2 | bouillir | 9 | 
                                    
                                    69.2%
                                 | 
| 3 | filtrer | 0 | 
                                    
                                    0%
                                 | 
| 4 | eau de javel | 0 | 
                                    
                                    0%
                                 | 
| 5 | permanganate | 0 | 
                                    
                                    0%
                                 | 
| 6 | bouteille exposee au soleil | 0 | 
                                    
                                    0%
                                 | 
| 7 | autres | 0 | 
                                    
                                    0%
                                 | 
| Sysmiss | 188 |