Top 15 most populous city Ranking history (1950 - 2030)

This video shows the Top 15 megacities by population from 1950 to 2030. This video also shows a shift of power from European and North American cities to Asian and African cities. As projected by United Nations, there will only one city from North America and Europe in 2030.
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top 10 countries by population in africa from 1960 to 2017
https://www.youtube.com/watch?v=rptjl...
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top 20 countries by population in the Europe (1960 -- 2017)
https://www.youtube.com/watch?v=cHXfP...
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top 15 countries by Total reserves (includes gold, current US$) in the world (1960- 2017)
https://www.youtube.com/watch?v=h9pMD...
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top 15 countries by population in the world (1960 - 2017)
https://www.youtube.com/watch?v=ZZWCK...
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Players with most goals in the UEFA Champions League from 1955 to 2019
https://www.youtube.com/watch?v=UnOdI...
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Top 15 Countries by Oil Proved reserves in million barrels from 1980 to 2018
https://www.youtube.com/watch?v=w_4OX...
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top 15 countries by GDP in africa (1960 - 2017)
https://www.youtube.com/watch?v=cJ39f.
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The 20 poorest countries by GDP PPP per capita in europe (current international $)
https://www.youtube.com/watch?v=gqnUk...
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top15 richest europa countries by GDP per capita (USD) (1990-2017)
https://www.youtube.com/watch?v=jG7IWp0mzzc&t=9s