The bar chart illustrates the percentage of the total world population in 4 different countries from 1950 to 2002 and predictions for 2050. India showed significant increase, while other countries have been declining.
To begin with, India had only 15 percent of the total world population in 1950, which had grown to almost 17. 5 percent in 2002 and predicting to be around 20 until 2050. USA had not significant percent as India with only about 7. 5 at the start, which had decreased in 2002 to 5 percent and is going to remain in the same level to 2050 year.
However, China is showing the most significant decrease from 1950 to 2050. Starting from about 22. 5 percent in 1950, decreased to 20 in 2002 and is going to have the sharpest decline in 2050 in almost 15 percent. Japan was lowest country with the population level from the beginning, additionally, showed the least decrease from all countries, starting with about 4. 75 percent in 1950 and with only about 1 percent in 2050.