| Value | Category | 
                                    
                    
                        | 1 | 1. SOUTH AFRICA | 
                                    
                    
                        | 2 | 2. OTHER AFRICA | 
                                    
                    
                        | 3 | 3. UNITED KINGDOM | 
                                    
                    
                        | 4 | 4. OTHER EUROPE | 
                                    
                    
                        | 5 | 5. N AMERICA | 
                                    
                    
                        | 6 | 6. AUS/NZ | 
                                    
                    
                        | 7 | 7. ASIA | 
                                    
                    
                        | 8 | 8. UNKNOWN | 
                            
            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.