| Value | Category | 
                                    
                    
                        | 1 | Pensioner | 
                                    
                    
                        | 2 | Student | 
                                    
                    
                        | 3 | Unemployed | 
                                    
                    
                        | 4 | House- wife | 
                                    
                    
                        | 5 | Other non worker | 
                                    
                    
                        | 9 | Doesn't know , refuses answer | 
                                    
                    
                        | 0 | Not in Universe | 
                            
            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.