| Value | Category | 
                                    
                    
                        | -9 | Don't know (spontaneous) | 
                                    
                    
                        |  |  | 
                                    
                    
                        | 3200 |  | 
                                    
                    
                        | 4000 |  | 
                                    
                    
                        | 5000 |  | 
                                    
                    
                        | 6000 |  | 
                                    
                    
                        | 10000 |  | 
                                    
                    
                        | 11000 |  | 
                                    
                    
                        | 20000 |  | 
                                    
                    
                        | 29500 |  | 
                                    
                    
                        | 50000 |  | 
                                    
                    
                        | 50923 |  | 
                                    
                    
                        | 54000 |  | 
                                    
                    
                        | 60000 |  | 
                                    
                    
                        | 65000 |  | 
                                    
                    
                        | 100000 |  | 
                                    
                    
                        | 114000 |  | 
                                    
                    
                        | 132000 |  | 
                                    
                    
                        | 150000 |  | 
                                    
                    
                        | 180000 |  | 
                                    
                    
                        | 200000 |  | 
                                    
                    
                        | 220000 |  | 
                                    
                    
                        | 240000 |  | 
                                    
                    
                        | 250000 |  | 
                                    
                    
                        | 260000 |  | 
                                    
                    
                        | 270000 |  | 
                                    
                    
                        | 280000 |  | 
                                    
                    
                        | 300000 |  | 
                                    
                    
                        | 309713 |  | 
                                    
                    
                        | 350000 |  | 
                                    
                    
                        | 360000 |  | 
                                    
                    
                        | 375000 |  | 
                                    
                    
                        | 380000 |  | 
                                    
                    
                        | 400000 |  | 
                                    
                    
                        | 420000 |  | 
                                    
                    
                        | 450000 |  | 
                                    
                    
                        | 500000 |  | 
                                    
                    
                        | 520000 |  | 
                                    
                    
                        | 600000 |  | 
                                    
                    
                        | 619000 |  | 
                                    
                    
                        | 633000 |  | 
                                    
                    
                        | 650000 |  | 
                                    
                    
                        | 700000 |  | 
                                    
                    
                        | 750000 |  | 
                                    
                    
                        | 800000 |  | 
                                    
                    
                        | 850000 |  | 
                                    
                    
                        | 1000000 |  | 
                                    
                    
                        | 1150000 |  | 
                                    
                    
                        | 1200000 |  | 
                                    
                    
                        | 1400000 |  | 
                                    
                    
                        | 1432660 |  | 
                                    
                    
                        | 1500000 |  | 
                                    
                    
                        | 1572000 |  | 
                                    
                    
                        | 1800000 |  | 
                                    
                    
                        | 2000000 |  | 
                                    
                    
                        | 2400000 |  | 
                                    
                    
                        | 2500000 |  | 
                                    
                    
                        | 2700000 |  | 
                                    
                    
                        | 2800000 |  | 
                                    
                    
                        | 3000000 |  | 
                                    
                    
                        | 3680000 |  | 
                                    
                    
                        | 4000000 |  | 
                                    
                    
                        | 4800000 |  | 
                                    
                    
                        | 5000000 |  | 
                                    
                    
                        | 6000000 |  | 
                                    
                    
                        | 6500000 |  | 
                                    
                    
                        | 7000000 |  | 
                                    
                    
                        | 8000000 |  | 
                                    
                    
                        | 8800000 |  | 
                                    
                    
                        | 10000000 |  | 
                                    
                    
                        | 14000000 |  | 
                                    
                    
                        | 20000000 |  | 
                                    
                    
                        | 30000000 |  | 
                                    
                    
                        | 42036000 |  | 
                                    
                    
                        | 45000000 |  | 
                                    
                    
                        | 55000000 |  | 
                                    
                    
                        | 70000000 |  | 
                                    
                    
                        | 140000000 |  | 
                                    
                    
                        | 150000000 |  | 
                                    
                    
                        | 300000000 |  | 
                                    
                    
                        | 350000000 |  | 
                            
            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.