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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.
Estimate numbers are from the beginning of the year, and exact population figures are for countries that held a census on various dates in that year. The bulk of these numbers are sourced from Alexander V. Avakov's Two Thousand Years of Economic Statistics, Volume 1 , pages 15 to 17, which cover population figures from the year 1600 divided ...
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).
Estimate numbers are from the beginning of the year, and exact population figures are for countries that held a census on various dates in that year. The bulk of these numbers are sourced from Alexander V. Avakov's Two Thousand Years of Economic Statistics, Volume 1 , pages 12 to 14, which cover population figures from the year 1500 divided ...
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".
The US population expanded by about 100 million people One of them was Vivek Ramaswamy, who was born in 1985 and is one of two wealthy men tasked by President-elect Donald Trump with shrinking the ...
Currently, 757 million humans live in the 101 largest cities; [40] these cities are home to 11% of the world's population. [40] By the end of the century, the world population is projected to grow, with estimates ranging from 6.9 billion to 13.1 billion; [40] the percentage of people living in the 101 largest cities is estimated to be 15% to 23 ...