| Value | Category | 
                                    
                    
                        | 0 | Nothing | 
                                    
                    
                        | 500 |  | 
                                    
                    
                        | 600 |  | 
                                    
                    
                        | 800 |  | 
                                    
                    
                        | 900 |  | 
                                    
                    
                        | 1000 |  | 
                                    
                    
                        | 1200 |  | 
                                    
                    
                        | 1400 |  | 
                                    
                    
                        | 1500 |  | 
                                    
                    
                        | 1600 |  | 
                                    
                    
                        | 1800 |  | 
                                    
                    
                        | 2000 |  | 
                                    
                    
                        | 2100 |  | 
                                    
                    
                        | 2400 |  | 
                                    
                    
                        | 2500 |  | 
                                    
                    
                        | 2800 |  | 
                                    
                    
                        | 3000 |  | 
                                    
                    
                        | 3200 |  | 
                                    
                    
                        | 3500 |  | 
                                    
                    
                        | 4000 |  | 
                                    
                    
                        | 4500 |  | 
                                    
                    
                        | 4800 |  | 
                                    
                    
                        | 5000 |  | 
                                    
                    
                        | 5200 |  | 
                                    
                    
                        | 5300 |  | 
                                    
                    
                        | 6000 |  | 
                                    
                    
                        | 6500 |  | 
                                    
                    
                        | 7000 |  | 
                                    
                    
                        | 7200 |  | 
                                    
                    
                        | 7500 |  | 
                                    
                    
                        | 8000 |  | 
                                    
                    
                        | 9000 |  | 
                                    
                    
                        | 9600 |  | 
                                    
                    
                        | 10000 |  | 
                                    
                    
                        | 12000 |  | 
                                    
                    
                        | 12500 |  | 
                                    
                    
                        | 14000 |  | 
                                    
                    
                        | 14200 |  | 
                                    
                    
                        | 14400 |  | 
                                    
                    
                        | 15000 |  | 
                                    
                    
                        | 16000 |  | 
                                    
                    
                        | 17000 |  | 
                                    
                    
                        | 18000 |  | 
                                    
                    
                        | 18200 |  | 
                                    
                    
                        | 20000 |  | 
                                    
                    
                        | 23000 |  | 
                                    
                    
                        | 24000 |  | 
                                    
                    
                        | 25000 |  | 
                                    
                    
                        | 27000 |  | 
                                    
                    
                        | 30000 |  | 
                                    
                    
                        | 35000 |  | 
                                    
                    
                        | 36000 |  | 
                                    
                    
                        | 40000 |  | 
                                    
                    
                        | 45000 |  | 
                                    
                    
                        | 48000 |  | 
                                    
                    
                        | 50000 |  | 
                                    
                    
                        | 60000 |  | 
                                    
                    
                        | 70000 |  | 
                                    
                    
                        | 72000 |  | 
                                    
                    
                        | 75000 |  | 
                                    
                    
                        | 80000 |  | 
                                    
                    
                        | 93000 |  | 
                                    
                    
                        | 100000 |  | 
                                    
                    
                        | 120000 |  | 
                                    
                    
                        | 135000 |  | 
                                    
                    
                        | 180000 |  | 
                                    
                    
                        | 200000 |  | 
                                    
                    
                        | 250000 |  | 
                                    
                    
                        | 340000 |  | 
                                    
                    
                        | 360000 |  | 
                                    
                    
                        | 4000000 |  | 
                            
            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.