| Value | Category | 
                                    
                    
                        | 0 | NR | 
                                    
                    
                        | 1 | On foot | 
                                    
                    
                        | 2 | School bus | 
                                    
                    
                        | 3 | Cycle/motor cycle | 
                                    
                    
                        | 4 | Rickshaw | 
                                    
                    
                        | 5 | Public bus | 
                                    
                    
                        | 6 | Train | 
                                    
                    
                        | 7 |  | 
                                    
                    
                        | 9 | Others | 
                                    
                    
                        | 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.