| Value | Category | 
                                    
                    
                        | 0 |  | 
                                    
                    
                        | 20 |  | 
                                    
                    
                        | 30 |  | 
                                    
                    
                        | 70 |  | 
                                    
                    
                        | 105 |  | 
                                    
                    
                        | 200 |  | 
                                    
                    
                        | 370 |  | 
                                    
                    
                        | 400 |  | 
                                    
                    
                        | 500 |  | 
                                    
                    
                        | 750 |  | 
                                    
                    
                        | 800 |  | 
                                    
                    
                        | 1200 |  | 
                                    
                    
                        | 1800 |  | 
                                    
                    
                        | 3000 |  | 
                                    
                    
                        | 5000 |  | 
                                    
                    
                        | 10150 |  | 
                                    
                    
                        | 30000 |  | 
                                    
                    
                        | 33000 |  | 
                                    
                    
                        | 49900 |  | 
                                    
                    
                        | 99999 | DK-NA | 
                                    
                    
                        | 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.