Top 10 Country Population Ranking history and future (1950 - 2050)

Source :- United States Census Bureau - International Data Base (IDB), July 2015 edition (retrieved on October 20, 2015)

This video shows the Top 10 countries with most population from 1950 to 2050. The population ranking includes well known most populous countries such as, China, India, US, and Indonesia; it also shows some future predictions. Countries such as Nigeria, Pakistan, Bangladesh, Ethiopia, and Congo will be possibly ranked in the top 10 in the near future.

Population refers to a collection of humans. Demography is a social science which entails the statistical study of human populations. Population in simpler terms is the number of people in a city or town, region, country or world; population is usually determined by a process called census.