| Value | Category | 
                                    
                    
                        | 0 |  | 
                                    
                    
                        | 6 | Un solo cliente? (persona, empresa) | 
                                    
                    
                        | 7 | Distintos clientes? (incluye público en general) | 
                                    
                    
                        | 9 | Ns./Nr. | 
                            
            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.