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Population estimates cannot be considered accurate to more than two decimal digits; for example, the world population for the year 2012 was estimated at 7.02, 7.06, and 7.08 billion by the United States Census Bureau, the Population Reference Bureau, and the United Nations Department of Economic and Social Affairs, respectively, corresponding World population milestones went unnoticed until the 20th century, since there was no reliable data on global population dynamics. [2] The population of the world reached: [3][4] 1 billion in 1804 2 billion in 1928 3 billion in 1961 4 billion in 1975 5 billion in 1988 6 billion in 1999 7 billion in 2011 8 billion in 2022 Old estimates put the global population at: 9 billion by 2037–2043, 15 In world demographics, the world population is the total number of humans currently alive. It was estimated by the United Nations to have exceeded eight billion in mid-November 2022. It took around 300,000 years of human prehistory and history for the human population to reach a billion and only 218 more years to reach 8 billion. year world population (millions) -10000 4 -8000 5 -7000 5 -6000 5 -5000 5 -4000 7 -3000 14 -2000 27 -1000 50 -750 60 -500 100 -400 160 -200 150 1 170 200 190 400 190 500 190 600 200 700 210 800 220 900 226 1000 310 1100 301 1200 360 1250 400 1300 360 1340 443 1400 350 1500 425 1600 545 1650 470 1700 600 1750 790 1800 980 1850 1260 1900 1650 The current world population growth is approximately 1.09%. [5] 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. [5] The world's literacy rate has increased dramatically in the last 40 years, from 66.7% in 1979 to 86.3% today. [13] Based on this, the UN projected that the world population, 8 billion as of 2023, would peak around the year 2084 at about 10.3 billion, [6] and then start a slow decline, assuming a continuing decrease in the global average fertility rate from
2.5 births per woman during the 2015–2020 period to 1.8 by the year 2100 (the medium-variant List of countries by past and projected future populationPopulation of the present-day top seven most-populous countries, 1800 to 2100. Future projections are based on the 2024 UN's medium-fertility scenario. Chart created by Our World In Data in 2024. This article contains a list of countries by past and projected future population. This assumes that countries stay constant in the Notes My first SVG. Made using Gnumeric (using the chart tool and the data) and tweaked using Inkscape. Designed to be very similar to the original PNG version chart. "If things go according to plan, I'll teach myself how to use Gnuplot and make a version with that (and post the source code) which probably won't look like the original version."
