| Value | Category | Cases | |
|---|---|---|---|
| 1 | West Africa | 19196 | 
                                    
                                    37.2%
                                 | 
| 2 | East Africa | 8399 | 
                                    
                                    16.3%
                                 | 
| 3 | Southern Africa | 18003 | 
                                    
                                    34.9%
                                 | 
| 4 | North Africa | 5989 | 
                                    
                                    11.6%
                                 |