| Value | Category | 
                                    
                    
                        | 0 |  | 
                                    
                    
                        | 1 |  | 
                                    
                    
                        | 2 |  | 
                                    
                    
                        | 4 |  | 
                                    
                    
                        | 10 |  | 
                                    
                    
                        | 12 |  | 
                                    
                    
                        | 13 |  | 
                                    
                    
                        | 14 |  | 
                                    
                    
                        | 15 |  | 
                                    
                    
                        | 16 |  | 
                                    
                    
                        | 19 |  | 
                                    
                    
                        | 24 |  | 
                                    
                    
                        | 25 |  | 
                                    
                    
                        | 26 |  | 
                                    
                    
                        | 28 |  | 
                                    
                    
                        | 30 |  | 
                                    
                    
                        | 35 |  | 
                                    
                    
                        | 36 |  | 
                                    
                    
                        | 42 |  | 
                                    
                    
                        | 57 |  | 
                                    
                    
                        | 70 |  | 
                                    
                    
                        | 102 |  | 
                                    
                    
                        | 130 |  | 
                                    
                    
                        | 131 |  | 
                                    
                    
                        | 198 |  | 
                                    
                    
                        | 868 |  | 
                                    
                    
                        | 1512 |  | 
                                    
                    
                        | 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.