| Value | 
                    Category | 
                                                                            
                                    
                    
                        | -99 | 
                        Refused to answer  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | -88 | 
                        Not provided  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | -77 | 
                        Not applicable  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | -66 | 
                        Do not know  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 1 | 
                        No education  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 2 | 
                        Started but did not complete primary school  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 3 | 
                        Primary school  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 4 | 
                        Started but did not complete secondary school  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 5 | 
                        Secondary School  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 6 | 
                        Vocational Training  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 7 | 
                        Some university training  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 8 | 
                        Graduate degree (BA, BSc, etc)  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 9 | 
                        MBA from university in this country  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 10 | 
                        MBA from university in another country  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 11 | 
                        Other post graduate degree from university this country  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 12 | 
                        Other post graduate degree from university other country  | 
                        
                            
                        
                        
                        
                        
                            
                    
                            
            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.