The graph illustrates the percentage of the number of people living in metropolitan areas in the world and in different continents. Overall, it can be clearly seen that the percentage of population in North America has been a main part throughout the years, whereas Africa has been in the lower stage.
First of all, the populace in North America started from 64% in 1950, after that it experienced a growth to 79% in 2007 and will end in 2030 reaching a peak (87%). Regarding Africa the population was initially 15%, however, after a significant rise in 2007 (37%) it is expected to count 51% in 2030. Europe showed gradual increase from 1950 to 2030, the percentage of population rose from 51% to 72% in 1950 and 2007 and going to increase only for 5% more to reach 78% in 2030.
In conclution, the populace in all continents demonstrated significant increase from 1950 to 2007 and expecte to reach more in the next years.
