| Value | Category | 
                                    
                    
                        | 0 | Sin educación | 
                                    
                    
                        | 1 | Primaria 1-4 | 
                                    
                    
                        | 2 | Primaria 5-8 | 
                                    
                    
                        | 3 | Secundaria | 
                                    
                    
                        | 4 | Superior | 
                                    
                    
                        | 9 | Sin información | 
                            
            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.