The bar chart shows the percentage of the total world population in 4 countries in 1950 and 2002, and projections for 2050. Summarise the information by selecting and reporting the main features and make comparisons where relevant.

The given bar graph illustrates the proportional numbers of 4 different nations in terms of total

population

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and present forecasts for 2050.

Overall

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, the chart indicates that the percentage of the Chinese

population

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was the highest among others until the year 2000. But, by 2050

this

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trend will have changed and China will be replaced by India. In 1950 and 2000, Japan was the least in terms of total earth residents with fewer than 5%. China's

population

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was reported as more than a quarter in the year 1950, and after 50 years it dropped by approximately 3% to 22%,

nevertheless

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, it was the main proportion among other countries.

Similarly

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, during these 50 years, the effect of American residents on the total

population

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decreased from one in ten to one in twenty.

In contrast

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, the only country with growing numbers was India, from 15% in 1950 to nearly 18% in 2000. In 2050, it is estimated that India will continue its growth and will form more than 20% of the whole

population

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of the world.

On the other hand

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, the figures for China and Japan are projected to decrease to under a fifth and an insignificant minority respectively,

whereas

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The United States is expected to be identical to the previous half-century.