| Value | Category | Cases | |
|---|---|---|---|
| 1 | Per day | 9 | 
                                                                 
                                    
                                    3.4%
                                 
                                                             | 
                                                        
                    
| 2 | Per week | 26 | 
                                                                 
                                    
                                    9.8%
                                 
                                                             | 
                                                        
                    
| 3 | Per month | 227 | 
                                                                 
                                    
                                    85.3%
                                 
                                                             | 
                                                        
                    
| 4 | Per year | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| 5 | Per cubic meter | 2 | 
                                                                 
                                    
                                    0.8%
                                 
                                                             | 
                                                        
                    
| 6 | Per 20 litre container | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| 7 | Per 200 litre tank | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| 8 | Other | 2 | 
                                                                 
                                    
                                    0.8%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 15062 |