| Value | Category | 
                                    
                    
                        | 0 | 0. Grade R/0 | 
                                    
                    
                        | 1 | 1. Sub A/Grade 1 | 
                                    
                    
                        | 2 | 2. Sub B/Grade 2 | 
                                    
                    
                        | 3 | 3. Grade 3/Standard 1 | 
                                    
                    
                        | 4 | 4. Grade 4/Standard 2 | 
                                    
                    
                        | 5 | 5. Grade 5/Standard 3 | 
                                    
                    
                        | 6 | 6. Grade 6/Standard 4 | 
                                    
                    
                        | 7 | 7. Grade 7/Standard 5 | 
                                    
                    
                        | 8 | 8. Grade 8/Standard 6/Form 1 | 
                                    
                    
                        | 9 | 9. Grade 9/Standard 7/Form 2 | 
                                    
                    
                        | 10 | 10. Grade 10/Standard 8/Form 3 | 
                                    
                    
                        | 11 | 11. Grade 11/Standard 9/Form 4 | 
                                    
                    
                        | 12 | 12. Grade 12/Standard 10/Form 5/Matric (No Exemption) | 
                                    
                    
                        | 13 | 13. Grade 12/Standard 10/Form 5/Matric (Exemption/Bachelors pass) | 
                                    
                    
                        | 14 | 14. NTC I | 
                                    
                    
                        | 15 | 15. NTC II | 
                                    
                    
                        | 16 | 16. NTC III | 
                                    
                    
                        | 17 | 17. N4/NTC 4 | 
                                    
                    
                        | 18 | 18. N5 /NTC 5 | 
                                    
                    
                        | 19 | 19. N6/NTC 6 | 
                                    
                    
                        | 20 | 20. Certificate with less than Grade 12/Std 10 | 
                                    
                    
                        | 21 | 21. Diploma with less than Grade 12/Std 10 | 
                                    
                    
                        | 22 | 22. Certificate with Grade 12/Std 10 | 
                                    
                    
                        | 23 | 23. Diploma with Grade 12/Std 10 | 
                                    
                    
                        | 24 | 24. Higher Diploma | 
                                    
                    
                        | 25 | 25. Post Higher Diploma | 
                                    
                    
                        | 26 | 26. Bachelors Degree | 
                                    
                    
                        | 27 | 27. Bachelors Degree and PG Diploma | 
                                    
                    
                        | 28 | 28. Honours Degree | 
                                    
                    
                        | 29 | 29. Higher Degree (Masters/PhD) | 
                                    
                    
                        | 30 | 30. Other, specify | 
                                    
                    
                        | 31 | 31. Don't know | 
                                    
                    
                        | 98 | 98. No schooling | 
                            
            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.