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Graph of world population over the past 12,000 years . As a general rule, the confidence of estimates on historical world population decreases for the more distant past. Robust population data exist only for the last two or three centuries. Until the late 18th century, few governments had ever performed an accurate census.
English: World population chart, from 1800 to 2100 — showing both estimates and actual population counts. World population estimates from 1800 to 2100, based on: United Nations projections (in 2010) — "high" (colored red), "medium" (orange), and "low" (green) U.S. Census Bureau (historical estimates) — (colored black). Actual recorded ...
The current world population growth is approximately 1.09%. [7] People under 15 years of age made up over a quarter of the world population (25.18%), and people age 65 and over made up nearly ten percent (9.69%) in 2021. [7] The world population more than tripled during the 20th century from about 1.65 billion in 1900 to 5.97 billion in 1999.
During the 20th century, the global population saw its greatest increase in known history, rising from about 1.6 billion in 1900 to over 6 billion in 2000 [102] as the whole world entered the early phases of what has come to be called the "demographic transition".
1 World population estimates (1 C.E.) and growth rates (till 1000 C.E.) with 20 current countries 2 Alternative Estimates of the Regional Components of World Population, 1 C.E. (in thousands) 3 See also
During the 14th century, there was a fall in population associated with the Black Death that spread from Asia to Europe. This was followed by a period of restrained growth for 300 years. [6] John F. Richards estimated the following world populations from the early modern period, 1500–1800. [7] 1500 world population 400-500 million; 1600 world ...
The "Day of Seven Billion" was targeted by the United States Census Bureau to be in March 2012, [15] while the Population Division of the United Nations suggested 31 October 2011, [16] and the latter date was officially designated by the United Nations Population Fund (UNFPA) as the approximate day on which the world's population reached seven ...
As the United States has grown in area and population, new states have been formed out of U.S. territories or the division of existing states. The population figures provided here reflect modern state boundaries. Shaded areas of the tables indicate census years when a territory or the part of another state had not yet been admitted as a new state.