| Value | Category | 
                                    
                    
                        | 0 |  | 
                                    
                    
                        | 1 | have too work | 
                                    
                    
                        | 2 | too costly | 
                                    
                    
                        | 3 | donot want to study | 
                                    
                    
                        | 4 | temp stop | 
                                    
                    
                        | 5 | complete education | 
                                    
                    
                        | 6 | ill | 
                                    
                    
                        | 7 | other | 
                            
            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.