| Value | Category | 
                                    
                    
                        | 1 | More Convenient School | 
                                    
                    
                        | 2 | Convenient School | 
                                    
                    
                        | 3 | Not Inconvenient School | 
                                    
                    
                        | 4 | Difficult School | 
                                    
                    
                        | 5 | Very Difficult School | 
                            
            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.