| Value | Category | 
                                    
                    
                        | 1 | On foot | 
                                    
                    
                        | 2 | By bicycle | 
                                    
                    
                        | 3 | By own car | 
                                    
                    
                        | 4 | By public transport | 
                                    
                    
                        | 5 | By mini-bus | 
                                    
                    
                        | 6 | By taxi | 
                                    
                    
                        | 7 | Whatever is available | 
                                    
                    
                        | 8 | 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.