| Value | Category | 
                                    
                    
                        | 0 |  | 
                                    
                    
                        | 500 |  | 
                                    
                    
                        | 600 |  | 
                                    
                    
                        | 700 |  | 
                                    
                    
                        | 1000 |  | 
                                    
                    
                        | 1200 |  | 
                                    
                    
                        | 1300 |  | 
                                    
                    
                        | 1400 |  | 
                                    
                    
                        | 1500 |  | 
                                    
                    
                        | 1600 |  | 
                                    
                    
                        | 1700 |  | 
                                    
                    
                        | 1750 |  | 
                                    
                    
                        | 2000 |  | 
                                    
                    
                        | 2250 |  | 
                                    
                    
                        | 3000 |  | 
                                    
                    
                        | 3200 |  | 
                                    
                    
                        | 3500 |  | 
                                    
                    
                        | 4000 |  | 
                                    
                    
                        | 4500 |  | 
                                    
                    
                        | 4800 |  | 
                                    
                    
                        | 5000 |  | 
                                    
                    
                        | 5200 |  | 
                                    
                    
                        | 5400 |  | 
                                    
                    
                        | 6000 |  | 
                                    
                    
                        | 7000 |  | 
                                    
                    
                        | 7200 |  | 
                                    
                    
                        | 7500 |  | 
                                    
                    
                        | 8000 |  | 
                                    
                    
                        | 8400 |  | 
                                    
                    
                        | 9000 |  | 
                                    
                    
                        | 10000 |  | 
                                    
                    
                        | 10800 |  | 
                                    
                    
                        | 11000 |  | 
                                    
                    
                        | 11200 |  | 
                                    
                    
                        | 11500 |  | 
                                    
                    
                        | 12000 |  | 
                                    
                    
                        | 12500 |  | 
                                    
                    
                        | 13000 |  | 
                                    
                    
                        | 13500 |  | 
                                    
                    
                        | 14000 |  | 
                                    
                    
                        | 15000 |  | 
                                    
                    
                        | 15200 |  | 
                                    
                    
                        | 16000 |  | 
                                    
                    
                        | 16500 |  | 
                                    
                    
                        | 17000 |  | 
                                    
                    
                        | 18000 |  | 
                                    
                    
                        | 19000 |  | 
                                    
                    
                        | 20000 |  | 
                                    
                    
                        | 21000 |  | 
                                    
                    
                        | 22000 |  | 
                                    
                    
                        | 22500 |  | 
                                    
                    
                        | 23000 |  | 
                                    
                    
                        | 23700 |  | 
                                    
                    
                        | 24000 |  | 
                                    
                    
                        | 24500 |  | 
                                    
                    
                        | 25000 |  | 
                                    
                    
                        | 25500 |  | 
                                    
                    
                        | 25900 |  | 
                                    
                    
                        | 26000 |  | 
                                    
                    
                        | 27000 |  | 
                                    
                    
                        | 28000 |  | 
                                    
                    
                        | 28800 |  | 
                                    
                    
                        | 30000 |  | 
                                    
                    
                        | 30250 |  | 
                                    
                    
                        | 31000 |  | 
                                    
                    
                        | 32000 |  | 
                                    
                    
                        | 33500 |  | 
                                    
                    
                        | 34000 |  | 
                                    
                    
                        | 35000 |  | 
                                    
                    
                        | 36000 |  | 
                                    
                    
                        | 37500 |  | 
                                    
                    
                        | 38000 |  | 
                                    
                    
                        | 38400 |  | 
                                    
                    
                        | 40000 |  | 
                                    
                    
                        | 41500 |  | 
                                    
                    
                        | 42000 |  | 
                                    
                    
                        | 42750 |  | 
                                    
                    
                        | 43000 |  | 
                                    
                    
                        | 44000 |  | 
                                    
                    
                        | 44800 |  | 
                                    
                    
                        | 45000 |  | 
                                    
                    
                        | 46100 |  | 
                                    
                    
                        | 48000 |  | 
                                    
                    
                        | 49000 |  | 
                                    
                    
                        | 50000 |  | 
                                    
                    
                        | 50400 |  | 
                                    
                    
                        | 53000 |  | 
                                    
                    
                        | 54000 |  | 
                                    
                    
                        | 55000 |  | 
                                    
                    
                        | 56000 |  | 
                                    
                    
                        | 57000 |  | 
                                    
                    
                        | 60000 |  | 
                                    
                    
                        | 62000 |  | 
                                    
                    
                        | 64000 |  | 
                                    
                    
                        | 65000 |  | 
                                    
                    
                        | 69000 |  | 
                                    
                    
                        | 70000 |  | 
                                    
                    
                        | 74000 |  | 
                                    
                    
                        | 75000 |  | 
                                    
                    
                        | 77000 |  | 
                                    
                    
                        | 79000 |  | 
                                    
                    
                        | 80000 |  | 
                                    
                    
                        | 82000 |  | 
                                    
                    
                        | 84000 |  | 
                                    
                    
                        | 85000 |  | 
                                    
                    
                        | 86500 |  | 
                                    
                    
                        | 90000 |  | 
                                    
                    
                        | 98000 |  | 
                                    
                    
                        | 100000 |  | 
                                    
                    
                        | 110000 |  | 
                                    
                    
                        | 114000 |  | 
                                    
                    
                        | 115000 |  | 
                                    
                    
                        | 120000 |  | 
                                    
                    
                        | 130000 |  | 
                                    
                    
                        | 150000 |  | 
                                    
                    
                        | 160700 |  | 
                                    
                    
                        | 200000 |  | 
                                    
                    
                        | 212000 |  | 
                                    
                    
                        | 215000 |  | 
                                    
                    
                        | 241000 |  | 
                                    
                    
                        | 300000 |  | 
                                    
                    
                        | 400000 |  | 
                                    
                    
                        | 500000 |  | 
                                    
                    
                        | 2147483625 | don't know | 
                                    
                    
                        | 2147483639 | refusal | 
                                    
                    
                        | 2147483640 | skipped | 
                                    
                    
                        | 2147483645 | .x. censored | 
                                    
                    
                        | 1000001 | .. | 
                                    
                    
                        | 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.