The bar graph illustrates the proportion of the total world population in India, China, USA and Japan. Data in 1950 and 2002 is shown, and there are predictions for 2050. Overall, China, US and Japan had witnessed a decline in percentage of world population, and are likely to follow the trend. Conversely, the proportion of population in India had experience a climb, and is predicted to remain the increase trend.
From 1950 to 2002, China remained its place as the most populated nation in the world, but its population percentage dropped form 23% to 20%. Tightly following China, India was the second populated country on the graph, with the percentage of population increased from 15% to 17%. The world population proportion of the United States of America, with 7% in 1950, decreased by 2% after 52 years. Japan, being the least populated nation on the bar chart, had its proportion of the world population declining from 4% to 3%.
In the future of 2050, India is likely to replace China as the most populated country in the world, it is predicted to further increase its population percentage to 18%, while China is estimate to drop to 15%. USA is projected to reamain its population proportion in 2050, but that of Japan is predicted to decline to approximate 1%.