| Value | 
                    Category | 
                                    
                                                        
                        | 1 | 
                        Completed | 
                                            
                                                        
                        | 2 | 
                        Not at home | 
                                            
                                                        
                        | 3 | 
                        Postponed | 
                                            
                                                        
                        | 4 | 
                        Refused | 
                                            
                                                        
                        | 5 | 
                        Partially completed | 
                                            
                                                        
                        | 6 | 
                        Respondent incapacitated | 
                                            
                                                        
                        | 7 | 
                        Other | 
                                            
                            
            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.