The AfDB report, "Tracking Africa's Progress", predicts that the city’s population will increase from 4 million to 6.2 million over the next 10 years. 
Taarifa ya Benki ya Maendeleo ya Afrika, "Ufuatiliaji wa Maendeleo ya Africa", imeonesha makisio ya ongezeko la watu katika jiji hilo kutoka watu milioni 4 hadi milioni 6.2 katika kipindi cha miaka 10 ijayo.