Thegiven bar graph compares the changes in the proportion of population in India,China, USA and japan in 1950 and 2000, and also indicates the projection for 2050.
overall, china had the highest population and japan had the lowest population in 1950 as well as 2000. On the contrary, if we go by the projection, then India will have the highest percentage of population and japan will remain the lowest by 2050.
IN 1950,China accounted for a little over a quarter of the worlds population. Although it decreased to a little under a quarter, it was still the highest in 2000, compared to the other three countries.Its estimated that the population of china will continue to drop, and would reach approximately 19% by 2050. India showed an opposing trend to China.The population in India in 1950 was 15%, which was considerably lower that that of china. However, the population increased moderately to 19% by 2000 and is further expected to grow and reach nearly 20%, which would be highest among the given countries by 2050
when it comes to the population of the USA and Japan, both showed a decrease from 1950 to 2000. Its predicted that the percentage will remain the same in the USA, whereas in Japan, the population is likely to keep falling till 2050.