Historical Estimates of World Population (Population in millions. When lower and upper estimates are the same they are shown under "Lower.") ------------------------------------------------------------------------------------- McEv- edy --Summary-- Bira- --Durand--- and Thomlinson- -UN, 1973-- UN, Year Lower Upper ben Lower Upper Haub Jones Lower Upper Lower Upper 1995 USBC ------------------------------------------------------------------------------------- -10000 1 10 4 1 10 -8000 5 5 -6500 5 10 5 10 -5000 5 20 5 5 20 -4000 7 7 -3000 14 14 -2000 27 27 -1000 50 50 -500 100 100 -400 162 162 -200 150 231 231 150 1 170 400 255 270 330 300 170 200 200 400 300 200 190 256 256 190 400 190 206 206 190 500 190 206 206 190 600 200 206 206 200 700 207 210 207 210 800 220 224 224 220 900 226 240 226 240 1000 254 345 254 275 345 265 310 1100 301 320 301 320 1200 360 450 400 450 360 1250 400 416 416 400 1300 360 432 432 360 400 1340 443 443 1400 350 374 374 350 1500 425 540 460 440 540 425 500 1600 545 579 579 545 1650 470 545 500 545 500 470 545 1700 600 679 679 610 600 1750 629 961 770 735 805 795 720 700 629 961 790 1800 813 1,125 954 900 900 813 1,125 980 1850 1,128 1,402 1,241 1,265 1,200 1,200 1,128 1,402 1,260 1900 1,550 1,762 1,633 1,650 1,710 1,656 1,625 1,600 1,550 1,762 1,650 1910 1,750 1,750 1920 1,860 1,860 1930 2,070 2,070 1940 2,300 2,300 1950 2,400 2,556 2,527 2,516 2,500 2,400 2,486 2,520 2,556 ------------------------------------------------------------------------------------- Sources: Biraben, Jean-Noel, 1980, An Essay Concerning Mankind's Evolution, Population, Selected Papers, December, table 2. Durand, John D., 1974, "Historical Estimates of World Population: An Evaluation," University of Pennsylvania, Population Center, Analytical and Technical Reports, Number 10, table 2. Haub, Carl, 1995, "How Many People Have Ever Lived on Earth?" Population Today, February, p. 5. McEvedy, Colin and Richard Jones, 1978, "Atlas of World Population History," Facts on File, New York, pp. 342-351. Thomlinson, Ralph, 1975, "Demographic Problems, Controversy Over Population Control," Second Edition, Table 1. United Nations (UN), 1973, The Determinants and Consequences of Population Trends, Population Studies, No. 50., p.10. United Nations, 1996, "World Population From Year 0 to Stabilization", gopher://gopher.undp.org:70/00/ungophers/popin/wdtrends/histor U.S. Bureau of the Census (USBC), 1995, "Total Midyear Population for the World: 1950-2050", Data updated 2-28-96, http://www.census.gov/ipc/www/worldpop.html