| Value | Category | 
                                    
                    
                        | 1 | work | 
                                    
                    
                        | 2 | education | 
                                    
                    
                        | 3 | accompany spouse | 
                                    
                    
                        | 4 | accompany other family member | 
                                    
                    
                        | 5 | housing related | 
                                    
                    
                        | 6 | other | 
                                    
                    
                        | 10 |  | 
                                    
                    
                        | 20 |  | 
                                    
                    
                        | 30 |  | 
                                    
                    
                        | 35 |  | 
                                    
                    
                        | 50 |  | 
                                    
                    
                        | 60 |  | 
                                    
                    
                        | 70 |  | 
                                    
                    
                        | 75 |  | 
                                    
                    
                        | 100 |  | 
                                    
                    
                        | 120 |  | 
                                    
                    
                        | 150 |  | 
                                    
                    
                        | 200 |  | 
                                    
                    
                        | 250 |  | 
                                    
                    
                        | 300 |  | 
                                    
                    
                        | 320 |  | 
                                    
                    
                        | 400 |  | 
                                    
                    
                        | 450 |  | 
                                    
                    
                        | 500 |  | 
                                    
                    
                        | 550 |  | 
                                    
                    
                        | 570 |  | 
                                    
                    
                        | 600 |  | 
                                    
                    
                        | 700 |  | 
                                    
                    
                        | 750 |  | 
                                    
                    
                        | 800 |  | 
                                    
                    
                        | 900 |  | 
                                    
                    
                        | 1000 |  | 
                                    
                    
                        | 1050 |  | 
                                    
                    
                        | 1100 |  | 
                                    
                    
                        | 1200 |  | 
                                    
                    
                        | 1500 |  | 
                                    
                    
                        | 1600 |  | 
                                    
                    
                        | 1700 |  | 
                                    
                    
                        | 1800 |  | 
                                    
                    
                        | 1900 |  | 
                                    
                    
                        | 2000 |  | 
                                    
                    
                        | 2240 |  | 
                                    
                    
                        | 2300 |  | 
                                    
                    
                        | 2400 |  | 
                                    
                    
                        | 2500 |  | 
                                    
                    
                        | 3000 |  | 
                                    
                    
                        | 3500 |  | 
                                    
                    
                        | 3800 |  | 
                                    
                    
                        | 4000 |  | 
                                    
                    
                        | 4500 |  | 
                                    
                    
                        | 5000 |  | 
                                    
                    
                        | 5500 |  | 
                                    
                    
                        | 6000 |  | 
                                    
                    
                        | 6500 |  | 
                                    
                    
                        | 7000 |  | 
                                    
                    
                        | 8000 |  | 
                                    
                    
                        | 8200 |  | 
                                    
                    
                        | 8500 |  | 
                                    
                    
                        | 9000 |  | 
                                    
                    
                        | 9998 |  | 
                                    
                    
                        | 10000 |  | 
                                    
                    
                        | 11000 |  | 
                                    
                    
                        | 12000 |  | 
                                    
                    
                        | 13000 |  | 
                                    
                    
                        | 14000 |  | 
                                    
                    
                        | 15000 |  | 
                                    
                    
                        | 16000 |  | 
                                    
                    
                        | 17000 |  | 
                                    
                    
                        | 18000 |  | 
                                    
                    
                        | 20000 |  | 
                                    
                    
                        | 22000 |  | 
                                    
                    
                        | 25000 |  | 
                                    
                    
                        | 30000 |  | 
                                    
                    
                        | 33000 |  | 
                                    
                    
                        | 35000 |  | 
                                    
                    
                        | 36000 |  | 
                                    
                    
                        | 38000 |  | 
                                    
                    
                        | 40000 |  | 
                                    
                    
                        | 50000 |  | 
                                    
                    
                        | 55000 |  | 
                                    
                    
                        | 64000 |  | 
                                    
                    
                        | 65000 |  | 
                                    
                    
                        | 70000 |  | 
                                    
                    
                        | 99998 |  | 
                                    
                    
                        | 99999 |  | 
                                    
                    
                        | Sysmiss |  | 
                            
            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.