| Value | 
                    Category | 
                                                                            
                                    
                    
                        | All customers pay the same price for each product/service sold. | 
                          | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | Each customer pays a different price for each product/service sold. | 
                          | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | Some customers pay lower prices based on the relationship with the customer. | 
                          | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | Some customers pay lower prices based on the time of day. | 
                          | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | Some customers pay lower prices depending on the quantity sold. | 
                          | 
                        
                            
                        
                        
                        
                        
                            
                    
                            
            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.