| Value | 
                    Category | 
                                                                            
                                    
                    
                        | 000 | 
                        NIU (not in universe)  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 110 | 
                        No schooling  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 211 | 
                        Some primary (less than 4 yrs)  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 212 | 
                        Primary (4 yrs completed)  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 213 | 
                        Primary (6 yrs completed)  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 214 | 
                        Primary completed (8 yrs)  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 310 | 
                        Secondary general  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 311 | 
                        Some secondary  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 312 | 
                        Secondary completed  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 320 | 
                        Apprentice school or vocational high school certificate  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 321 | 
                        Apprentice or vocational, with some primary  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 322 | 
                        Apprentice or vocational, primary completed  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 323 | 
                        Apprentice or vocational, with some secondary  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 400 | 
                        Post-secondary education (non-tertiary)  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 500 | 
                        Higher education  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 510 | 
                        Some university  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 520 | 
                        Non-university completed  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 530 | 
                        University completed  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 540 | 
                        Doctorate or equivalent  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 999 | 
                        Unknown  | 
                        
                            
                        
                        
                        
                        
                            
                    
                            
            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.