| Value | Category | 
                                    
                    
                        | 1 | 5% | 
                                    
                    
                        | 2 | 10% | 
                                    
                    
                        | 3 | 15% | 
                                    
                    
                        | 4 | 20% | 
                                    
                    
                        | 5 | 25% | 
                                    
                    
                        | 6 | 30% | 
                                    
                    
                        | 7 | 35% | 
                                    
                    
                        | 8 | 40% | 
                                    
                    
                        | 9 | 45% | 
                                    
                    
                        | 10 | 50% | 
                                    
                    
                        | 11 | 55% | 
                                    
                    
                        | 12 | 60% | 
                                    
                    
                        | 13 | 65% | 
                                    
                    
                        | 14 | 70% | 
                                    
                    
                        | 15 | 75% | 
                                    
                    
                        | 16 | 80% | 
                                    
                    
                        | 17 | 85% | 
                                    
                    
                        | 18 | 90% | 
                                    
                    
                        | 19 | 95% | 
                                    
                    
                        | 20 | 100% | 
                            
            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.