| Value | Category | 
                                    
                    
                        | 300 |  | 
                                    
                    
                        | 1000 |  | 
                                    
                    
                        | 2000 |  | 
                                    
                    
                        | 2500 |  | 
                                    
                    
                        | 3000 |  | 
                                    
                    
                        | 3500 |  | 
                                    
                    
                        | 3800 |  | 
                                    
                    
                        | 4000 |  | 
                                    
                    
                        | 4500 |  | 
                                    
                    
                        | 4800 |  | 
                                    
                    
                        | 5000 |  | 
                                    
                    
                        | 5500 |  | 
                                    
                    
                        | 6000 |  | 
                                    
                    
                        | 6500 |  | 
                                    
                    
                        | 7000 |  | 
                                    
                    
                        | 7500 |  | 
                                    
                    
                        | 7600 |  | 
                                    
                    
                        | 8000 |  | 
                                    
                    
                        | 9000 |  | 
                                    
                    
                        | 9998 | DK | 
                                    
                    
                        | 9999 | N/A | 
                                    
                    
                        | 10000 |  | 
                                    
                    
                        | 11000 |  | 
                                    
                    
                        | 12000 |  | 
                            
            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.