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World population

population > World population

World populationWhat is (Sekaijinkou)?世界Alive inHuman capitalNumber of (people).In addition, in the governing areapopulationI can't figure out exactly政府The world population isInternational organizationAnd governments of each country,UniversityIt is necessary to pay attention when browsing each material because it is largely estimated by researchers such as.

population history

Human evolutionIn history, the total number of humankind isDiseaseand climateCold weatherAlthough there was a temporary decrease due to21st centuryIt has been increasing since the beginning.United NationsAnd the United StatesUniversity of WashingtonAccording to estimatesAD1 million people around the year,1500It is said that there were 5 million people at that time.The times when the development of food production technology, medicine, and public health was delayedStarvationThere were many deaths from illness and illness, and the pace of population growth was slow.[1].

18st century OfIndustrial revolutionSince then, the pace of increase in the world population has accelerated,1800Reached about 10 billion people[1]. And20st centuryTo humanityPopulation explosionExperienced the largest population growth in human history called.United Nations estimates19st centuryEnd1900The world population was about 16 billion in the middle of the 20th century1950About 25 billion people at the end of the 20th century1998Has surged to about 60 billion people.especiallySecond World WarLater increase is remarkable.

The current population is about one-fifth of the total population that has existed in the last 6000 years.(English editionAccording to a study by, the world population today (20) accounts for nearly 7% of the total population that has existed in human history for about 2022 years.[2].

The table below provides approximate population estimates and projections from the United Nations (including the number of years it took to add 10 billion people).The world population is estimated to have reached 50 billion19877/11[Note 1]To commemorateUnited Nations Population FundThen this day is "World Population Day"When1989has been enacted.According to the United Nations 2011 State of World Population Report,201110/31It is estimated that the world population has reached 70 billion.[3]But,US Census Bureau(USCB) estimates that 70 billion people will be reached20123/12Being around[4][5][6].

World Population Estimates (United Nations Estimates)
Year of arrivalpopulation10 billion more people
Number of years required
202280 billion (forecast)[7]
11
201170 million[8][9]
13
199860 million[Note 2]
12
198650 million[Note 1]
12
197440 million[9]
15
195930 million[9]
32
192720 million[9]
123
180410 million[9][Note 3]

future predictions

Predicting the world population is very difficultBirth rateBecause of the large fluctuations due to changes in the world economy, etc., the UN projections have been revised intermittently.About every two years, the United Nations publishes the latest estimates, the World Population Prospects (World Population Prospects) Has been announced2019In the edition2030About 85 billion people2050Approximately 97 billion people in2100projected to peak at about 109 billion people in[10][11].

さ ら に2022In the edition2058After exceeding 100 billion people in2086In 104, the population will peak at approximately 2019 billion (ahead of the 2100 edition), and is projected to remain at the same level until XNUMX (both median values).[7][12].

World Population Forecast (United Nations Estimates)
Year of arrivalpopulation10 billion more people
years required
2058100 million[7]
21
203790 million[13]
15
202280 million[7]
11

On the other hand, in recent yearsDeveloped country,one child policyHave gonePeople's Republic of ChinaAs well,Southeast AsiaCountries andIndia,Bangladesh,Turkey,Latin AmericaCountries etc.Middle-income country,Developing countryEven in Japan, the birth rate is declining rapidly, and it is beginning to be predicted that the global population decline will come sooner than before.

米 国University of WashingtonInstitute for Health Metrics2020A study published in July (English medical journal "LancetThe average fertility rate in the world is declining, according to2017From 2.4 at the time2100Expected to be 1.7 or less by.As a result, the world population2064After peaking at about 97 billion in 21, it is projected to decline to about 88 billion by the end of the XNUMXst century.

in additionJapan, South Korea,Italy,SpainIn a total of 23 countries, the population at the end of the same century2017It is predicted that it will be less than half compared to the time point[14].AsiaAlso2055The population will start to decline and the population explosion will continue in the latter half of the 21st century.African continentOnly predicted[1].

Estimated population by continent

seven continents OfContinentAnother population (2016Time point)
ContinentThe population density
(People/km2)
population
(Million people)
Most countriesMost metropolitan areas
Asia96.44,4361,382,300,000[Note 4]  - Flag of the People's Republic of China Chugoku35,676,000 / 13,634,685 – Japanese flag Tokyo metropolitan area
Africa36.71,2160186,987,000 – Nigerian flag Nigeria20,500,000 – Egyptian flag Cairo [15]
Europe72.97380145,939,000 – Russian flag Russia16,855,000 / 12,506,468 – Russian flag MoscowMetropolitan area[16]
North America[Note 5]22.95790324,991,600 – United States flag America23,723,696 / 8,537,673 – United States flag New York metropolitan area
South America22.84220209,567,000 – Brazilian flag Brazil27,640,577 / 11,316,149 – Brazilian flag Sao PauloMetropolitan area
Oceania4.539.90024,458,800 – Australian flag Australia5,005,400 – Australian flag Sydney
Antarctic0.00030.004 in summer[17]N/A[Note 6]1,200 - McMurdo Station

World Population Estimates / Predictions

It is very difficult to estimate the total population of the world, including the past population, and the figures vary from researcher to researcher.Here we list the estimates compiled by multiple researchers.The projected population shows only the median.
ADUSCB

(2008)[18]

PRB

(2007)[19]

UNDESA

(2006)[20]

HYDE

(2006)[21]

Maddison

(2003)[22]

Biraben

(1980)[23]

McEvedy &

Jones (1978)[24]

Thomlinson

(1975)[25]

Durand

(1974)[26]

Clark

(1967)[27]

−100004,000,0001,000,000-
10,000,000
−80005,000,0005,000,000-
10,000,000
−50005,000,0005,000,000-
20,000,000
−40007,000,000
−300014,000,000
−200027,000,000
−100050,000,000
−500100,000,000
−400162,000,000
−200231,000,000150,000,000
1300,000,000300,000,000230,820,000255,000,000170,000,000200,000,000270,000,000-
330,000,000
14256,000,000
200256,000,000190,000,000
350254,000,000
400206,000,000190,000,000
500206,000,000190,000,000
600206,000,000200,000,000237,000,000
700207,000,000210,000,000
800224,000,000220,000,000261,000,000
900226,000,000240,000,000
1000310,000,000268,273,000254,000,000265,000,000275,000,000-
345,000,000
280,000,000
1100301,000,000320,000,000
1200450,000,000400,000,000360,000,000384,000,000
1250400,000,000416,000,000350,000,000-
450,000,000
1300432,000,000360,000,000400,000,000
1340443,000,000378,000,000
1400374,000,000350,000,000
1500500,000,000437,818,000460,000,000425,000,000440,000,000-
540,000,000
427,000,000
1600555,828,000579,000,000545,000,000498,000,000
1650500,000,000545,000,000500,000,000516,000,000
1700640,035,774603,410,000679,000,000610,000,000600,000,000641,000,000
1710662,378,306
1720679,615,896
1730689,283,580
1740769,991,547
1750795,000,000791,000,000824,276,110770,000,000720,000,000700,000,000735,000,000-
805,000,000
731,000,000
1760846,137,329
1770864,445,832
1780949,409,344
1790982,617,842
1800978,000,000980,851,296954,000,000900,000,000900,000,000890,000,000
18101,045,073,963
18201,069,841,6901,041,092,000
18301,138,392,564
18401,192,729,394
18501,265,000,0001,262,000,0001,244,327,9491,241,000,0001,200,000,0001,200,000,000
18601,270,044,073
18701,309,430,1361,270,014,000
18751,325,000,000
18801,397,685,022
18901,516,025,314
19001,656,000,0001,650,000,0001,633,848,2131,563,622,0001,633,000,0001,625,000,0001,600,000,0001,650,000,000-
1,710,000,000
1,668,000,000
19101,750,000,0001,753,594,443
19131,791,091,000
19201,860,000,0001,888,034,1271,968,000,000
19252,000,000,000
19302,070,000,0002,073,363,4212,145,000,000
19402,300,000,0002,299,541,9392,340,000,000
19502,555,948,6542,516,000,0002,535,093,0002,528,313,2932,524,324,0002,527,000,0002,500,000,0002,400,000,0002,499,000,000
19552,780,907,4972,770,753,0002,767,727,5352,766,471,000
19603,041,593,4133,031,931,0003,035,624,5453,038,795,000
19623,138,805,6263,155,862,9583,132,691,0003,036,000,000
19653,349,157,0953,342,771,0003,351,348,6993,328,882,000
19663,419,597,9443,420,389,1933,397,631,0003,288,000,000
19703,711,800,7863,698,676,0003,696,590,1633,685,058,0003,637,000,0003,600,000,0003,600,000,000-
3,700,000,000
19733,941,725,1313,923,325,6293,916,489,000
19754,089,026,7734,076,080,0004,073,741,8194,065,408,0003,900,000,0004,000,000,000
19804,452,766,3364,451,470,0004,442,296,5964,435,598,000
19854,852,574,4674,855,264,0004,843,949,0854,830,813,000
19905,282,371,9285,294,879,0005,279,521,2835,259,502,000
19955,690,982,0265,760,000,0005,719,045,0005,692,354,5375,677,287,000
19985,929,679,5835,930,407,1035,914,930,000
19996,007,529,5856,008,326,0715,997,967,000
20006,084,907,5966,124,123,0006,085,574,3866,071,144,0005,750,000,000
20016,162,280,5766,162,166,3916,149,006,000
20026,238,819,8396,215,000,0006,238,183,321
20056,470,340,4366,477,000,0006,514,751,0006,464,751,609
20066,548,696,9756,555,000,0006,540,285,038
20076,627,548,9856,625,000,0006,615,854,053
20086,706,992,9326,691,483,957
20106,866,880,4316,906,558,0006,842,925,208
20157,269,526,2567,295,135,0007,219,433,211
20207,659,291,9537,667,090,0007,577,890,552
20258,027,490,1917,965,000,0008,010,509,0007,905,241,284
20308,373,133,9798,317,707,0008,199,106,302
20358,698,603,1898,587,050,000
20409,003,222,7798,823,546,000
20459,284,422,9119,025,982,000
20509,538,988,2639,294,000,0009,191,287,000

footnote

[How to use footnotes]

注 釈

  1. ^ a b The United Nations Population Division originally announced that the world population had reached 1987 billion on July 7, 11, but it was later revised to 50.[8].
  2. ^ The United Nations Population Division originally announced that the world population had reached 1999 billion on July 10, 12, but it was later revised to 60.[8].
  3. ^ Estimates of reaching 10 billion people are sometimes given around 1802 or 1807.
  4. ^ Special administrative regionHong KongMacauincluding.
  5. ^ Central americaCaribbean regionincluding.
  6. ^ Antarctic TreatyAs a result, the claim of national sovereignty over the Antarctic region has been restricted and frozen.Sovereign areas claimed by each countryInRoss DependencyHas the largest population.

Source

  1. ^ a b c "Nihon Keizai ShimbunMorning edition August 2021, 8 [Population and the world] (viewed on the same day) Page 23Beyond the myth of growth (1) The first decline in human historyAnd three sides "Humanity is declining and changing society'
  2. ^ "How Many People Have Ever Lived on Earth?" (English). (English edition (February 2021, 5). As of February 18, 2022originalMore archives.April 2022, 3Browse.
  3. ^ "World Population Prospects, the 2008 Revision – Frequently Asked Questions”. Population Division of the Department of Economic and Social Affairs of the United Nations Secretariat (November 2010, 11). As of February 10, 2015.originalMore archives.April 2015, 3Browse.
  4. ^ International Data Base: World Population Summary(US Census Bureau)
  5. ^ "A world population of 70 billion, is it okay to grow so much?". 47NEWS(July 2011, 10). http://www.47news.jp/47topics/premium/e/221830.php April 2012, 1Browse. 
  6. ^ “World population exceeded 70 billion, why on this day?”. National geographicJapanese version. (October 2011, 10). http://natgeo.nikkeibp.co.jp/nng/article/news/14/5123/ April 2016, 6Browse. 
  7. ^ a b c d World Population to Hit 11 Billion in November: UN Releases World Population Prospects 80(United Nations Population Fund Japan Office July 2022, 7, viewed August 12, 2022)
  8. ^ a b c Data/Statistics: Graph of World Population Transition (Estimated Value) Graph of World Population from the Birth of Humanity to 2050(United Nations Population Fund Japan Office viewed August 2022, 8)
  9. ^ a b c d e [Illustration] World population reaches 70 billion(AFPBB News, July 2011, 10, viewed August 31, 2022)
  10. ^ World Population Estimate 2019: Summary of 10 key findings (Japanese translation)(United Nations Information Center July 2019, 7, viewed August 2, 2022)
  11. ^ Catalog ▽ Future population estimation of the world and major countries(Actual social data catalog viewed August 2022, 8)
  12. ^ World population growth below 1% Supports post-war growth, turning point(Nihon Keizai Shimbun July 2022, 7, viewed August 12, 2022)
  13. ^ 578. United Nations "World Population Projection 2022" ~Estimated to reach 2022 billion by November 11, 15~(National Research and Development AgencyInternational Research Center for Agriculture, Forestry and Fisheries (Retrieved on July 2022, 7, July 13, 2022)
  14. ^ "World birth rate, tremendous decline, population halved by the end of this century in 23 countries = US university forecast"with the BBCNews (June 2020, 7) Retrieved December 15, 2021
  15. ^ "archived copy”. As of May 2020, 2originalMore archives.April 2020, 3Browse.
  16. ^ "Largest Cities in Europe”. As of May 2018, 6originalMore archives.April 2018, 6Browse.
  17. ^ "Antarctica”. CIA World Factbook (June 2014, 6). As of November 19, 2017originalMore archives.April 2015, 3Browse.
  18. ^ United States Census Bureau Estimated and predicted population in the middle of the year.2008/6/18 update.
  19. ^ Population Reference Bureau Estimated and predicted population in the middle of the year.
    (a) Haub, Carl, 2007, "2007 World Population Data Sheet.": Estimated and projected population in mid-2007.
    (B) Carl Haub, 2006, "2006 World Population Data Sheet.": Estimated population in mid-2006.
    (C) Carl Haub, 2005, "2005 World Population Data Sheet.": Estimated population in mid-2005.
    (D) Carl Haub, 2002, "How Many People Have Ever Lived on Earth?" Population Today, Vol. 30 (no. 8), pp. 3–4.: 2002 mid-year estimate.
    (E) Carl Haub, 1995, "How Many People Have Ever Lived on Earth?" Population Today, Vol. 23 (no. 2), pp. 5–6.: Estimated mid-year population before 1995.
  20. ^ United Nations Department of Economic and Social Affairs Estimated and predicted population in the middle of the year.
    (a) World Population Prospects: The 2006 Revision.: Mid-year estimated and projected population from 1950 to 2050.
    (B) "The World at Six Billion," 1999.: Estimated mid-year population before 1950.
  21. ^ History Database of the Global Environment Estimated and predicted population in the middle of the year. K. Klein Goldewijk and G. van Drecht, "HYDE 3.0: Current and historical population and land cover," in Eds. AF Bouwman, T. Kram, and K. Klein Goldewijk, "Integrated modeling of global environmental change. An overview of IMAGE 2.4, "Netherlands Environmental Assessment Agency (MNP), Bilthoven, The Netherlands.
  22. ^ Angus Maddison, 2003, "World Economy: Historical Statistics", Vol. 2, OECD, Paris, ISBN-9 2641-0412-7.
  23. ^ (a) Jean-Noël Biraben, 1980, "An Essay Concerning Mankind's Evolution", Population, Selected Papers, Vol. 4, pp. 1–13. ..
    (b) Jean-Noël Biraben, 1979, "Essai sur l'évolution du nombre des hommes", Population, Vol. 34 (no. 1), pp. 13–25.
  24. ^ Colin McEvedy and Richard Jones, 1978, "Atlas of World Population History," Facts on File, New York, ISBN-0 7139-1031-3.
  25. ^ Ralph Thomlinson, 1975, "Demographic Problems: Controversy over population control," 2nd Ed., Dickenson Publishing Company, Ecino, CA, ISBN-0 8221-0166-1.
  26. ^ John D. Durand, 1974, "Historical Estimates of World Population: An Evaluation," University of Pennsylvania, Population Center, Analytical and Technical Reports, Number 10.
  27. ^ Colin Clark, 1967, "Population Growth and Land Use," St. Martin's Press, New York, ISBN-0 333-01126-0.

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