Africa Business Pages - Top 10 countries in Africa account for about 78% of the continent's GDP; Nigeria is to be a trillion-dollar economy by 2025 | Facebook
What are the most densely populated countries in Africa? Which countries should be worried about population growth rates ( top 5) in Africa? - Quora
![James Hall on Twitter: "Population growth patterns show by end of century Africa will have 5 of world's Top 10 most populous countries. Nigeria (only African country in Top 10 in 2020) James Hall on Twitter: "Population growth patterns show by end of century Africa will have 5 of world's Top 10 most populous countries. Nigeria (only African country in Top 10 in 2020)](https://pbs.twimg.com/media/Ec86MjjWAAMm3gc.png)