The bar chart gives information about the percentage of the world population living in four countries (India, China, the USA, and Japan) in 1950 and 2002, with estimated figures for 2050.
Overall, China had the highest population share in both 1950 and 2002, while Japan had the lowest. Except for India, all other countries are projected to decline by 2050, whereas India’s share is expected to increase slightly.
In 1950, China represented just over 20% of the world’s population. India had a much lower figure at around 15%, followed by the USA at roughly 7% and Japan at 4%. By 2002, India was the only country that increased, rising to around 17%. In contrast, China fell slightly to about 20%, while the USA dropped to 5% and Japan to just over 3%.
In 2050, the percentage of the global population living in India is predicted to rise to nearly 19%, overtaking China, which is expected to fall sharply to around 15%. The USA is likely to remain stable at about 5%, while Japan’s share will decline to only 1%, the lowest of all countries.