It published its findings on the ten biggest economies of Africa with Nigeria topping the list.
According to Forbes, Nigeria came on top with $172 billion which was followed by South Africa with $166.735 billion.
Also on the list was Egypt as third with $78 billion, Algeria with $66, Lybia :$65, Botswana: $22.675, Ghana :$20.458 Morroco :$18, Ivory Coast :$11 and Madagascar with $6.766 billion.