The chart below shows the percentage of the whole world population in four countries' contributions, in percentages, to the world population from1950-2020.

This chart compares the proportion these percentages of the whole world population in four countries, from 1950-2002, with and provides population projections to into 2050.

It is clear that the graph shows the figure for the whole population in India's percentage of the world population increasing, but while the figures for the whole world population of representing China，the USA，and Japan's percentages of the world population decreased.

The figure for the whole world population in India increased marginally by 7% to 18% from 1950 to 2002. While  And according to the graph, it will rise by 4% to 22% from 2002 to 2050.

The figure for  representing the whole world population in China dropped moderately byfrom 27% to 24% from between 1950 to and 2002., but it will decline dramatically by 6% to 18% 12% from between 2002 to and 2050.

The figure  representing  for the whole world population in the USA dropped slightly by from 3% to 7% ( <-- Be careful! This is phrased in a confusing way.) from 1950 to 2002，but it will stay stable from 2002 to 2050.

The figure  representing for the whole world population in Japan decreased marginally by 1% to 4% ( <-- This is also phrased in a confusing way.) from 1950 to 2002, but it will reduce  decrease by 2%, resulting in a figure of to 3% from 2002 to in 2050.