The chart below shows the percentage of the whole world population in four countries from 1950 to 2000, with projections till 2050. Summarise the information by selecting and reporting the main features and make comparisons where relevant.

1. Graph Type: Bar Graph

2. Title: Percentage of World Population in Four Countries (1950-2050)

3. Units of Measurement: Percentage

4. Who: Four countries (India, China, the USA, and Japan)

5. When: 1950, 2000, and projections for 2050

6. Where: Global comparison

7. Topic: Changes in the proportion of the world population across four countries over time

The bar chart illustrates the percentage of the global population represented by four countries—India, China, the USA, and Japan—in 1950, 2000, and projections for 2050. It highlights significant shifts, with India expected to become the most populous among them by 2050.

Overall, the data suggest that while India’s population is set to rise and surpass China’s by 2050, Japan will see the most significant decline among the four countries.

In 1950, China accounted for slightly over a quarter of the world’s population, the highest among the four nations. Although this figure declined to just under 25% by 2000, China still maintained its lead. However, projections indicate a continued decline, reaching approximately 19% by 2050. Conversely, India’s share, starting at 15% in 1950, showed a steady increase to 19% by 2000. It is anticipated to rise further and become the highest among the four, at nearly 20% by 2050.

The USA and Japan demonstrated decreasing trends from 1950 to 2000. The USA’s proportion is expected to remain stable beyond 2000, while Japan’s population share, already the lowest in 2000, is projected to fall to about 3% by 2050.

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