| Value | Category | 
                                    
                    
                        | 0 |  | 
                                    
                    
                        | 1 | never attended | 
                                    
                    
                        | 2 | attended school in the past | 
                                    
                    
                        | 3 | currently attending school | 
                                    
                    
                        | 98 | dk/na | 
                                    
                    
                        | 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.