| Value | Category | 
                                    
                    
                        | -99 | Don't know | 
                                    
                    
                        | 30 |  | 
                                    
                    
                        | 500 |  | 
                                    
                    
                        | 4000 |  | 
                                    
                    
                        | 5000 |  | 
                                    
                    
                        | 6500 |  | 
                                    
                    
                        | 8000 |  | 
                                    
                    
                        | 9500 |  | 
                                    
                    
                        | 10000 |  | 
                                    
                    
                        | 12000 |  | 
                                    
                    
                        | 12500 |  | 
                                    
                    
                        | 12800 |  | 
                                    
                    
                        | 15000 |  | 
                                    
                    
                        | 19000 |  | 
                                    
                    
                        | 20000 |  | 
                                    
                    
                        | 25000 |  | 
                                    
                    
                        | 30000 |  | 
                                    
                    
                        | 34000 |  | 
                                    
                    
                        | 36000 |  | 
                                    
                    
                        | 40000 |  | 
                                    
                    
                        | 43000 |  | 
                                    
                    
                        | 45000 |  | 
                                    
                    
                        | 47000 |  | 
                                    
                    
                        | 50000 |  | 
                                    
                    
                        | 55000 |  | 
                                    
                    
                        | 55500 |  | 
                                    
                    
                        | 60000 |  | 
                                    
                    
                        | 65000 |  | 
                                    
                    
                        | 67400 |  | 
                                    
                    
                        | 69000 |  | 
                                    
                    
                        | 70000 |  | 
                                    
                    
                        | 75000 |  | 
                                    
                    
                        | 80000 |  | 
                                    
                    
                        | 90000 |  | 
                                    
                    
                        | 100000 |  | 
                                    
                    
                        | 110000 |  | 
                                    
                    
                        | 115000 |  | 
                                    
                    
                        | 117250 |  | 
                                    
                    
                        | 120000 |  | 
                                    
                    
                        | 125000 |  | 
                                    
                    
                        | 130000 |  | 
                                    
                    
                        | 135000 |  | 
                                    
                    
                        | 140000 |  | 
                                    
                    
                        | 150000 |  | 
                                    
                    
                        | 153000 |  | 
                                    
                    
                        | 153500 |  | 
                                    
                    
                        | 156000 |  | 
                                    
                    
                        | 170000 |  | 
                                    
                    
                        | 175000 |  | 
                                    
                    
                        | 200000 |  | 
                                    
                    
                        | 220000 |  | 
                                    
                    
                        | 250000 |  | 
                                    
                    
                        | 275000 |  | 
                                    
                    
                        | 300000 |  | 
                                    
                    
                        | 350000 |  | 
                                    
                    
                        | 360000 |  | 
                                    
                    
                        | 400000 |  | 
                                    
                    
                        | 450000 |  | 
                                    
                    
                        | 500000 |  | 
                                    
                    
                        | 607800 |  | 
                                    
                    
                        | 750000 |  | 
                                    
                    
                        | 800000 |  | 
                                    
                    
                        | 1000000 |  | 
                                    
                    
                        | 7500000 |  | 
                                    
                    
                        | 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.