| Value | Category | 
                                    
                    
                        | 20 |  | 
                                    
                    
                        | 25 |  | 
                                    
                    
                        | 40 |  | 
                                    
                    
                        | 45 |  | 
                                    
                    
                        | 50 |  | 
                                    
                    
                        | 60 |  | 
                                    
                    
                        | 70 |  | 
                                    
                    
                        | 80 |  | 
                                    
                    
                        | 90 |  | 
                                    
                    
                        | 100 |  | 
                                    
                    
                        | 135 |  | 
                                    
                    
                        | 140 |  | 
                                    
                    
                        | 150 |  | 
                                    
                    
                        | 160 |  | 
                                    
                    
                        | 195 |  | 
                                    
                    
                        | 200 |  | 
                                    
                    
                        | 250 |  | 
                                    
                    
                        | 280 |  | 
                                    
                    
                        | 300 |  | 
                                    
                    
                        | 350 |  | 
                                    
                    
                        | 400 |  | 
                                    
                    
                        | 490 |  | 
                                    
                    
                        | 500 |  | 
                                    
                    
                        | 530 |  | 
                                    
                    
                        | 700 |  | 
                                    
                    
                        | 800 |  | 
                                    
                    
                        | 1000 |  | 
                                    
                    
                        | 1050 |  | 
                                    
                    
                        | 1400 |  | 
                                    
                    
                        | 3500 |  | 
                                    
                    
                        | 9999998 | refusal | 
                                    
                    
                        | 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.