| Value | Category | 
                                    
                    
                        | 1 | Insecticide | 
                                    
                    
                        | 2 | Herbicide | 
                                    
                    
                        | 3 | Fungicide | 
                                    
                    
                        | 4 | Insectcide & Herbicide | 
                                    
                    
                        | 5 | Insectcide & Fungicide | 
                                    
                    
                        | 6 | Herbicide & Fungicide | 
                                    
                    
                        | 7 | All | 
                                    
                    
                        | 9 | Not stated | 
                            
            Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.