| Value | Category | 
                                    
                    
                        | 0 |  | 
                                    
                    
                        | 1 |  | 
                                    
                    
                        | 2 |  | 
                                    
                    
                        | 3 |  | 
                                    
                    
                        | 4 |  | 
                                    
                    
                        | 5 |  | 
                                    
                    
                        | 6 |  | 
                                    
                    
                        | 7 |  | 
                                    
                    
                        | 8 |  | 
                                    
                    
                        | 9 |  | 
                                    
                    
                        | 10 |  | 
                                    
                    
                        | 11 |  | 
                                    
                    
                        | 12 |  | 
                                    
                    
                        | 13 |  | 
                                    
                    
                        | 14 |  | 
                                    
                    
                        | 15 |  | 
                                    
                    
                        | 16 |  | 
                                    
                    
                        | 17 |  | 
                                    
                    
                        | 18 |  | 
                                    
                    
                        | 19 |  | 
                                    
                    
                        | 20 |  | 
                                    
                    
                        | 22 |  | 
                                    
                    
                        | 25 |  | 
                                    
                    
                        | 26 |  | 
                                    
                    
                        | 30 |  | 
                                    
                    
                        | 32 |  | 
                                    
                    
                        | 50 |  | 
                                    
                    
                        | 91 |  | 
                                    
                    
                        | 120 |  | 
                                    
                    
                        | 700 |  | 
                                    
                    
                        | 1000 |  | 
                                    
                    
                        | 3000 |  | 
                                    
                    
                        | 3010 |  | 
                                    
                    
                        | 9000 |  | 
                                    
                    
                        | 60008 |  | 
                                    
                    
                        | 89999 |  | 
                                    
                    
                        | 90000 |  | 
                                    
                    
                        | 99998 |  | 
                                    
                    
                        | 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.