| Value | Category | 
                                    
                    
                        | -9 | Don't Know | 
                                    
                    
                        | -8 | Refused | 
                                    
                    
                        | -5 | Not applicable | 
                                    
                    
                        | -3 | Missing | 
                                    
                    
                        | 0 | Grade R/0 | 
                                    
                    
                        | 1 | Grade 1 (previosly Sub A / Class 1) | 
                                    
                    
                        | 2 | Grade 2 (previosly Sub B / Class 2) | 
                                    
                    
                        | 3 | Grade 3 (Std. 1) | 
                                    
                    
                        | 4 | Grade 4 (Std. 2) | 
                                    
                    
                        | 5 | Grade 5 (Std. 3) | 
                                    
                    
                        | 6 | Grade 6 (Std. 4) | 
                                    
                    
                        | 7 | Grade 7 (Std. 5) | 
                                    
                    
                        | 8 | Grade 8 (Std. 6/Form 1) | 
                                    
                    
                        | 9 | Grade 9 (Std. 7/Form 2) | 
                                    
                    
                        | 10 | Grade 10 (Std. 8/Form 3) | 
                                    
                    
                        | 11 | Grade 11 (Std. 9/Form 4) | 
                                    
                    
                        | 12 | Grade 12 (Std. 10/Matric/Senior Certificate/ Form 5) | 
                                    
                    
                        | 13 | NTC 1/NCV 2 | 
                                    
                    
                        | 14 | NTC 2/NCV 3 | 
                                    
                    
                        | 15 | NTC 3/NCV 4 | 
                                    
                    
                        | 16 | Certificate not requiring Grade 12/Std. 10 | 
                                    
                    
                        | 17 | Diploma not requiring Grade 12/Std. 10 | 
                                    
                    
                        | 18 | Certificate requiring Grade 12/Std. 10 | 
                                    
                    
                        | 19 | Diploma requiring Grade 12/Std. 10 | 
                                    
                    
                        | 20 | Bachelors Degree | 
                                    
                    
                        | 21 | Bachelors Degree and diploma | 
                                    
                    
                        | 22 | Honours Degree | 
                                    
                    
                        | 23 | Higher Degree (Masters, Doctorate) | 
                                    
                    
                        | 24 | Other (specify) | 
                                    
                    
                        | 25 | No schooling | 
                                    
                    
                        | 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.