| Value | Category | 
                                    
                    
                        | 12 |  | 
                                    
                    
                        | 13 |  | 
                                    
                    
                        | 14 |  | 
                                    
                    
                        | 23 |  | 
                                    
                    
                        | 31 |  | 
                                    
                    
                        | 32 |  | 
                                    
                    
                        | 33 |  | 
                                    
                    
                        | 34 |  | 
                                    
                    
                        | 42 |  | 
                                    
                    
                        | 54 |  | 
                                    
                    
                        | 61 |  | 
                                    
                    
                        | 64 |  | 
                                    
                    
                        | 81 |  | 
                                    
                    
                        | 83 |  | 
                                    
                    
                        | 84 |  | 
                                    
                    
                        | 91 |  | 
                                    
                    
                        | 92 |  | 
                                    
                    
                        | 93 |  | 
                                    
                    
                        | 101 |  | 
                                    
                    
                        | 103 |  | 
                                    
                    
                        | 111 |  | 
                                    
                    
                        | 113 |  | 
                                    
                    
                        | 114 |  | 
                                    
                    
                        | 121 |  | 
                                    
                    
                        | 122 |  | 
                                    
                    
                        | 123 |  | 
                                    
                    
                        | 132 |  | 
                                    
                    
                        | 134 |  | 
                                    
                    
                        | 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.