| Value | Category | 
                                    
                    
                        | 1 | walk | 
                                    
                    
                        | 2 | public transport | 
                                    
                    
                        | 3 | microbus | 
                                    
                    
                        | 4 | taxi | 
                                    
                    
                        | 5 | motorcycle | 
                                    
                    
                        | 6 | bicycle | 
                                    
                    
                        | 7 | private car | 
                                    
                    
                        | 8 | multiple modes | 
                                    
                    
                        | 9 | toc-toc | 
                                    
                    
                        | 10 | other | 
                                    
                    
                        | 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.