| Value | Category | 
                                    
                    
                        | -77 | Other, specify: _________ | 
                                    
                    
                        | 0 | Not enrolled | 
                                    
                    
                        | 1 | Pre-primary | 
                                    
                    
                        | 2 | Primary/grade 1 | 
                                    
                    
                        | 3 | Primary/grade 2 | 
                                    
                    
                        | 4 | Primary/grade 3 | 
                                    
                    
                        | 5 | Primary/grade 4 | 
                                    
                    
                        | 6 | Primary/class 5 | 
                                    
                    
                        | 7 | Primary/class 6 | 
                                    
                    
                        | 8 | Primary/class 7 | 
                                    
                    
                        | 9 | Primary/class 8 | 
                                    
                    
                        | 10 | Vocational or youth polytechnic | 
                                    
                    
                        | 11 | Secondary/form 1 | 
                                    
                    
                        | 12 | Secondary/form 2 | 
                                    
                    
                        | 13 | Secondary/form 3 | 
                                    
                    
                        | 14 | Secondary/form 4 | 
                                    
                    
                        | 15 | Mid-level college diploma or certificate program | 
                                    
                    
                        | 16 | Undergraduate university | 
                                    
                    
                        | 17 | Madrassa/Duksi | 
                                    
                    
                        | 18 | Nursery/Childcare | 
                                    
                    
                        | 2147483622 | Don't know | 
                                    
                    
                        | 2147483623 | Refused to answer | 
                                    
                    
                        | 2147483624 | Outlier set to missing | 
                                    
                    
                        | 2147483625 | Inconsistency set to missing | 
                                    
                    
                        | 2147483647 | Not applicable | 
                                    
                    
                        | 101 | .. | 
                            
            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.