| Value | Category | 
                                    
                    
                        | 0 | N/A | 
                                    
                    
                        | 1 | single | 
                                    
                    
                        | 2 | married | 
                                    
                    
                        | 3 | married informal | 
                                    
                    
                        | 4 | widower/widow | 
                                    
                    
                        | 5 | divorced/separated | 
                            
            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.