The graph depicts the percentage of population over the age of 65 according to a 2010 report in four different countries, India, China, Japan, and the US since 1980 with projections until 2050. The percentage of population is juxtaposed with the timeline in order to make comparisons.
By drawing comparisons from the given graph, it can be comprehended that in the year 1980 Japan has the highest percentage of population over 10 percentage, followed by US with less than 10 percentage and moreover, India and China close to 5 percentage. US witnessed a substantial rapid increase in the population growth compared to all other countries.
Moreover, India experienced no change in population percentage for a period of 30-40 years, followed by a steady rise since the end of 2020 and projected till 2050. Another key thing to notice is Japan experienced an unsteady growth in population and fell short of US and China considering the 2050 projections. Furthermore, China started of with minimal growth in population till 2010, followed by an enormous surge till 2050.
Overall, all the mentioned countries witnessed a rise in the percentage of population over the age of 65. However, at the end of 2050, US would have the maximum percentage of population followed by China, Japan and India.