| Value | Category | 
                                    
                    
                        | 1 | Abia | 
                                    
                    
                        | 2 | Adamawa | 
                                    
                    
                        | 3 | Akwa-Ibom | 
                                    
                    
                        | 4 | Anambra | 
                                    
                    
                        | 5 | Bauchi | 
                                    
                    
                        | 6 | Bayelsa | 
                                    
                    
                        | 7 | Benue | 
                                    
                    
                        | 8 | Borno | 
                                    
                    
                        | 9 | Cross River | 
                                    
                    
                        | 10 | Delta | 
                                    
                    
                        | 11 | Eboyin | 
                                    
                    
                        | 12 | Edo | 
                                    
                    
                        | 13 | Ekiti | 
                                    
                    
                        | 14 | Enugu | 
                                    
                    
                        | 15 | Gombe | 
                                    
                    
                        | 16 | Imo | 
                                    
                    
                        | 17 | Jigawa | 
                                    
                    
                        | 18 | Kaduna | 
                                    
                    
                        | 19 | Kano | 
                                    
                    
                        | 20 | Katsina | 
                                    
                    
                        | 21 | Kebbi | 
                                    
                    
                        | 22 | Kogi | 
                                    
                    
                        | 23 | Kwara | 
                                    
                    
                        | 24 | Lagos | 
                                    
                    
                        | 25 | Nasarawa | 
                                    
                    
                        | 26 | Niger | 
                                    
                    
                        | 27 | Ogun | 
                                    
                    
                        | 28 | Ondo | 
                                    
                    
                        | 29 | Osun | 
                                    
                    
                        | 30 | Oyo | 
                                    
                    
                        | 31 | Plateau | 
                                    
                    
                        | 32 | Rivers | 
                                    
                    
                        | 33 | Sokoto | 
                                    
                    
                        | 34 | Taraba | 
                                    
                    
                        | 35 | Yobe | 
                                    
                    
                        | 36 | Zamfara | 
                                    
                    
                        | 37 | FCT Abuja | 
                            
            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.