This bar chart shows us the growth of the urban agglomerations from 1950 to 2015. In the right side of the bar chart is the numbers in millions and in the top we see the dates of the growing populations. And we see the cities and the countries in the bar chart

Turning to the details, we see London has a steady decline from 1950 until 2015. Moreover, Lagos had the lowest number of population in 1950 which is less than one million and the most dramatic growth of all the countries. On the other hand  in 2015 we see Sao Paolo, Brazil and Tokyo Japan have the biggest amount of population which is 25 million. The lowest amount in 2015 predicted is in London

In conclusion, we see USA New York has a gradual increase from 1950 until 2015.Also we see Cairo has a huge increase from 1950 to 2015.Overall, we see most countries predicted to be bigger than ever.