| Value | Category | 
                                    
                    
                        | 0 |  | 
                                    
                    
                        | 1 |  | 
                                    
                    
                        | 3 |  | 
                                    
                    
                        | 4 |  | 
                                    
                    
                        | 5 |  | 
                                    
                    
                        | 6 |  | 
                                    
                    
                        | 8 |  | 
                                    
                    
                        | 9 |  | 
                                    
                    
                        | 10 |  | 
                                    
                    
                        | 12 |  | 
                                    
                    
                        | 15 |  | 
                                    
                    
                        | 16 |  | 
                                    
                    
                        | 20 |  | 
                                    
                    
                        | 26 |  | 
                                    
                    
                        | 30 |  | 
                                    
                    
                        | 33 |  | 
                                    
                    
                        | 40 |  | 
                                    
                    
                        | 50 |  | 
                                    
                    
                        | 72 |  | 
                                    
                    
                        | 90 |  | 
                                    
                    
                        | 92 |  | 
                                    
                    
                        | 150 |  | 
                                    
                    
                        | 200 |  | 
                                    
                    
                        | 210 |  | 
                                    
                    
                        | 240 |  | 
                                    
                    
                        | 300 |  | 
                                    
                    
                        | 500 |  | 
                                    
                    
                        | 900 |  | 
                                    
                    
                        | 908 |  | 
                                    
                    
                        | 1000 |  | 
                                    
                    
                        | 1500 |  | 
                                    
                    
                        | 2000 |  | 
                                    
                    
                        | 2658 |  | 
                                    
                    
                        | 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.