| Value | Category | 
                                    
                    
                        | 2 |  | 
                                    
                    
                        | 3 |  | 
                                    
                    
                        | 4 |  | 
                                    
                    
                        | 15 |  | 
                                    
                    
                        | 17 |  | 
                                    
                    
                        | 18 |  | 
                                    
                    
                        | 19 |  | 
                                    
                    
                        | 21 |  | 
                                    
                    
                        | 23 |  | 
                                    
                    
                        | 31 |  | 
                                    
                    
                        | 32 |  | 
                                    
                    
                        | 33 |  | 
                                    
                    
                        | 34 |  | 
                                    
                    
                        | 35 |  | 
                                    
                    
                        | 36 |  | 
                                    
                    
                        | 37 |  | 
                                    
                    
                        | 39 |  | 
                                    
                    
                        | 40 |  | 
                                    
                    
                        | 41 |  | 
                                    
                    
                        | 45 |  | 
                                    
                    
                        | 49 |  | 
                                    
                    
                        | 52 |  | 
                                    
                    
                        | 53 |  | 
                                    
                    
                        | 56 |  | 
                                    
                    
                        | 57 |  | 
                                    
                    
                        | 58 |  | 
                                    
                    
                        | 59 |  | 
                                    
                    
                        | 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.