| Value | Category | 
                                    
                    
                        | 0 |  | 
                                    
                    
                        | 50000 |  | 
                                    
                    
                        | 80000 |  | 
                                    
                    
                        | 100000 |  | 
                                    
                    
                        | 120000 |  | 
                                    
                    
                        | 140000 |  | 
                                    
                    
                        | 150000 |  | 
                                    
                    
                        | 170000 |  | 
                                    
                    
                        | 200000 |  | 
                                    
                    
                        | 210000 |  | 
                                    
                    
                        | 240000 |  | 
                                    
                    
                        | 250000 |  | 
                                    
                    
                        | 300000 |  | 
                                    
                    
                        | 330000 |  | 
                                    
                    
                        | 360000 |  | 
                                    
                    
                        | 450000 |  | 
                                    
                    
                        | 480000 |  | 
                                    
                    
                        | 500000 |  | 
                                    
                    
                        | 600000 |  | 
                                    
                    
                        | 700000 |  | 
                                    
                    
                        | 720000 |  | 
                                    
                    
                        | 750000 |  | 
                                    
                    
                        | 840000 |  | 
                                    
                    
                        | 960000 |  | 
                                    
                    
                        | 1000000 |  | 
                                    
                    
                        | 1100000 |  | 
                                    
                    
                        | 1200000 |  | 
                                    
                    
                        | 1320000 |  | 
                                    
                    
                        | 1800000 |  | 
                                    
                    
                        | 2000000 |  | 
                                    
                    
                        | 2280000 |  | 
                                    
                    
                        | 2400000 |  | 
                                    
                    
                        | 2500000 |  | 
                                    
                    
                        | 2560000 |  | 
                                    
                    
                        | 2800000 |  | 
                                    
                    
                        | 2880000 |  | 
                                    
                    
                        | 3000000 |  | 
                                    
                    
                        | 3600000 |  | 
                                    
                    
                        | 3800000 |  | 
                                    
                    
                        | 4800000 |  | 
                                    
                    
                        | 9000000 |  | 
                                    
                    
                        | 10800000 |  | 
                                    
                    
                        | 25200000 |  | 
                                    
                    
                        | 2147483625 | don't know | 
                                    
                    
                        | 2147483639 | refusal | 
                                    
                    
                        | 2147483640 | skipped | 
                                    
                    
                        | 2147483645 | .x. censored | 
                                    
                    
                        | 100000001 | .. | 
                                    
                    
                        | 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.