| Value | 
                    Category | 
                                                                            
                                    
                    
                        | -8 | 
                        other error  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | -7 | 
                        filter error  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | -4 | 
                        no personal income  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | -3 | 
                        inapplicable  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | -2 | 
                        no answer  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | -1 | 
                        does not know  | 
                        
                            
                        
                        
                        
                        
                            
                    
                            
            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.