| Value | Category | Cases | Weighted | |
|---|---|---|---|---|
| 1 | Traffic | 342 | 94828 | 
                                                                 
                                    
                                    12.7%
                                 
                                                             | 
                            
                        
                        
                            
                    
| 2 | Planes | 1 | 274 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                            
                        
                        
                            
                    
| 3 | Queries and stone cutting | 9 | 2893 | 
                                                                 
                                    
                                    0.4%
                                 
                                                             | 
                            
                        
                        
                            
                    
| 4 | Construction | 14 | 4219 | 
                                                                 
                                    
                                    0.6%
                                 
                                                             | 
                            
                        
                        
                            
                    
| 5 | Industrial activities | 90 | 26963 | 
                                                                 
                                    
                                    3.6%
                                 
                                                             | 
                            
                        
                        
                            
                    
| 6 | Others (specify | 157 | 45691 | 
                                                                 
                                    
                                    6.1%
                                 
                                                             | 
                            
                        
                        
                            
                    
| Sysmiss | 2080 | 569637 |