A shekara ta 2014 an kiyasta cewa kawai giwaye 50,000 ne suka rage a Afirka ta Tsakiya.
Tabbas, wani nau'i mai rikitarwa na jumla shine "Zuwa shekarar 2014 an kiyasta cewa giwaye 50,000 ne kawai suka rage a Afirka ta Tsakiya kuma manyan manyan al'ummomi sun kasance a Gabon da Jamhuriyar Congo. "