| Value | Category | 
                                    
                    
                        | 1 | Less than 5000 SDG | 
                                    
                    
                        | 2 | 5000 - less than 10000 | 
                                    
                    
                        | 3 | 10,000-less than 15,000 | 
                                    
                    
                        | 4 | 15,000 or more | 
                                    
                    
                        | 5 | I don't know (Don't read) | 
                                    
                    
                        | 6 | Refused (Don't read) | 
                            
            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.