| Value | Category | 
                                    
                    
                        | 0 | No schooling | 
                                    
                    
                        | 1 | Grade 0 | 
                                    
                    
                        | 2 | Sub A/Grade 1 | 
                                    
                    
                        | 3 | Sub B/Grade 2 | 
                                    
                    
                        | 4 | Grade 3/Standard 1 | 
                                    
                    
                        | 5 | Grade 4/Standard 2 | 
                                    
                    
                        | 6 | Grade 5/Standard 3 | 
                                    
                    
                        | 7 | Grade 6/Standard 4 | 
                                    
                    
                        | 8 | Grade 7/Standard 5 | 
                                    
                    
                        | 9 | Grade 8/Standard 6/Form 1 | 
                                    
                    
                        | 10 | Grade 9/Standard 7/Form 2 | 
                                    
                    
                        | 11 | Grade 10/Standard 8/Form 3 | 
                                    
                    
                        | 12 | Grade 11/Standard 9/Form 4 | 
                                    
                    
                        | 13 | Grade 12/Standard 10/Form 5/Matric | 
                                    
                    
                        | 14 | NTC l | 
                                    
                    
                        | 15 | NTC II | 
                                    
                    
                        | 16 | NTC III | 
                                    
                    
                        | 17 | Diploma/certificate with less than Grade 12/Std 10* | 
                                    
                    
                        | 18 | Diploma/certificate with Grade 12/Std 10* | 
                                    
                    
                        | 19 | Degree* | 
                                    
                    
                        | 20 | Postgraduate degree or diploma* | 
                                    
                    
                        | 21 | Other | 
                                    
                    
                        | 22 | Don't know | 
                                    
                    
                        | 99 | Unspecified | 
                            
            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.