| Value | Category | 
                                    
                    
                        | 14 |  | 
                                    
                    
                        | 15 |  | 
                                    
                    
                        | 15.8666667938232 |  | 
                                    
                    
                        | 15.9333333969116 |  | 
                                    
                    
                        | 16 |  | 
                                    
                    
                        | 16.0714282989502 |  | 
                                    
                    
                        | 16.8666667938232 |  | 
                                    
                    
                        | 16.9285717010498 |  | 
                                    
                    
                        | 17 |  | 
                                    
                    
                        | 17.1428565979004 |  | 
                                    
                    
                        | 18 |  | 
                                    
                    
                        | 19 |  | 
                                    
                    
                        | 20 |  | 
                            
            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.