The CIA World Factbook Edition 2022 People and Society

Population In 36 editions of 36.

Population was published in 36 editions of the CIA World Factbook, from 1990 to 2025. The 2022 edition carries it in 255 entries, in its People and Society section. Every entry is shown as that edition published it.

entries in the 2022 edition
255
the first edition with it
1990
the latest edition with it
2025

Published as “Population” (1990 to 2025).

the entry has the field in that editionnot in that editionthe open editionEach entry below ends in its editions with Population, 1990 to 2025. Point at a year above to follow it down; choose one in a row to read that edition’s text there.

Entries with Population in each edition

19902000201020202025

Select a bar to open that edition.

World

1 entry

World

7,905,336,896 (July 2022 est.)

top ten most populous countries (in millions):
  • China 1410.54;
  • India 1389.37;
  • United States 337.34;
  • Indonesia 277.33;
  • Pakistan 242.92;
  • Nigeria 225.08;
  • Brazil 217.24;
  • Bangladesh 165.65;
  • Russia 142.02;
  • Mexico 129.15
ten least populous countries:
  • Holy See (Vatican City) 1,000;
  • Saint Pierre and Miquelon 5,257;
  • Montserrat 5,414;
  • Saint Barthelemy 7,103;
  • Saint Helena, Ascension, and Tristan de Cunha 7,925;
  • Cook Islands 8,128;
  • Nauru 9,811;
  • Tuvalu 11,544;
  • Wallis and Futuna 15,891;
  • Anguilla 18,741
  • ten most densely populated countries (population per sq km): Macau 22,689;
  • Monaco 15,700;
  • Singapore 8,351.5;
  • Hong Kong 6,781.5;
  • Gaza Strip 5,548.1;
  • Gibraltar 4,224.7;
  • Bahrain 2,027;
  • Malta 1,468.9;
  • Bermuda 1,339.6;
  • Maldives 1,327.2
  • ten least densely populated countries (population per sq km): Greenland .026;
  • Falkland Islands .26;
  • Mongolia 2.1;
  • Namibia 3.3;
  • Australia 3.4;
  • Iceland 3.6;
  • Guyana 4;
  • Mauritania 4;
  • Suriname 4.1;
  • Libya 4.1

Africa

55 entries

Algeria

44,178,884 (2022 est.)

Angola

34,795,287 (2022 est.)

Benin

13,754,688 (2022 est.)

Botswana

2,384,246 (2022 est.)

Burkina Faso

21,935,389 (2022 est.)

Burundi

12,696,478 (2022 est.)

Cabo Verde

596,707 (2022 est.)

Cameroon

29,321,637 (2022 est.)

Central African Republic

5,454,533 (2022 est.)

Chad

17,963,211 (2022 est.)

Comoros

876,437 (2022 est.)

Congo, Democratic Republic of the now Democratic Republic of the Congo

108,407,721 (2022 est.)

Congo, Republic of the now Republic of the Congo

5,546,307 (2022 est.)

Cote d'Ivoire

28,713,423 (2022 est.)

Djibouti

957,273 (2022 est.)

Egypt

107,770,524 (2022 est.)

Equatorial Guinea

1,679,172 (2022 est.)

Eritrea

6,209,262 (2022 est.)

Eswatini

1,121,761 (2022 est.)

Ethiopia

113,656,596 (2022 est.)

Gabon

2,340,613 (2022 est.)

Gambia, The now The Gambia

2,413,403 (2022 est.)

Ghana

33,107,275 (2022 est.)

Guinea

13,237,832 (2022 est.)

Guinea-Bissau

2,026,778 (2022 est.)

Kenya

55,864,655 (2022 est.)

Lesotho

2,193,970 (2022 est.)

Liberia

5,358,483 (2022 est.)

Libya

7,137,931 (2022 est.)

note: immigrants make up just over 12% of the total population, according to UN data (2019)

Madagascar

28,172,462 (2022 est.)

Malawi

20,794,353 (2022 est.)

Mali

20,741,769 (2022 est.)

Mauritania

4,161,925 (2022 est.)

Mauritius

1,308,222 (2022 est.)

Morocco

36,738,229 (2022 est.)

note: includes Western Sahara

Mozambique

31,693,239 (2022 est.)

Namibia

2,727,409 (2022 est.)

Niger

24,484,587 (2022 est.)

Nigeria

225,082,083 (2022 est.)

Rwanda

13,173,730 (2022 est.)

Saint Helena, Ascension, and Tristan da Cunha

7,925 (2022 est.)

note: Saint Helena's Statistical Office estimated the resident population to be 4,439 in 2021; only Saint Helena, Ascension, and Tristan da Cunha islands are inhabited, none of the other nearby islands/islets are

Sao Tome and Principe

217,164 (2022 est.)

Senegal

17,923,036 (2022 est.)

Seychelles

97,017 (2022 est.)

Sierra Leone

8,692,606 (2022 est.)

Somalia

12,386,248 (2022 est.)

note: this estimate was derived from an official census taken in 1975 by the Somali Government; population counting in Somalia is complicated by the large number of nomads and by refugee movements in response to famine and clan warfare

South Africa

57,516,665 (2022 est.)

South Sudan

11,544,905 (2022 est.)

Sudan

47,958,856 (2022 est.)

Tanzania

63,852,892 (2022 est.)

Togo

8,492,333 (2022 est.)

Tunisia

11,896,972 (2022 est.)

Uganda

46,205,893 (2022 est.)

Zambia

19,642,123 (2022 est.)

Zimbabwe

15,121,004 (2022 est.)

Antarctic Region

5 entries

Antarctica

no indigenous inhabitants, but there are both year-round and summer-only staffed research stations

note: 54 countries have signed the 1959 Antarctic Treaty; 30 of those operate through their National Antarctic Program a number of seasonal-only (summer) and year-round research stations on the continent and its nearby islands south of 60 degrees south latitude (the region covered by the Antarctic Treaty); the population engaging in and supporting science or managing and protecting the Antarctic region varies from approximately 5,000 in summer to 1,100 in winter; in addition, approximately 1,000 personnel, including ship's crew and scientists doing onboard research, are present in the waters of the treaty region

  • as of 2017, peak summer (December-February) maximum capacity in scientific stations - 4,877 total;
  • Argentina 601, Australia 243, Belarus 12, Belgium 40, Brazil 66, Bulgaria 22, Chile 433, China 166, Czechia 20, Ecuador 34, Finland 17, France 90, France and Italy jointly 80, Germany 104, India 113, Italy 120, Japan 130, South Korea 130, Netherlands 10, NZ 86, Norway 70, Peru 30, Poland 40, Russia 335, South Africa 80, Spain 98, Sweden 20, Ukraine 24, UK 196, US 1,399, Uruguay 68 (2017)
  • winter (June-August) maximum capacity in scientific station - 1,036 total;
  • Argentina 221, Australia 52, Brazil 15, Chile 114, China 32, France 24, France and Italy jointly 13, Germany 9, India 48, Japan 40, Netherlands 10, South Korea 25, NZ 11, Norway 7, Poland 16, Russia 125, South Africa 15, Ukraine 12, UK 44, US 215, Uruguay 8 (2017)
  • research stations operated within the Antarctic Treaty area (south of 60 degrees south latitude) by National Antarctic Programs year-round stations - approximately 40 total;
  • Argentina 6, Australia 3, Brazil 1, Chile 6, China 2, France 1, France and Italy jointly 1, Germany 1, India 2, Japan 1, Netherlands 1, South Korea 2, NZ 1, Norway 1, Poland 1, Russia 5, South Africa 1, Ukraine 1, UK 2, US 3, Uruguay 2 (2017)

a range of seasonal-only (summer) stations, camps, and refuges - Argentina, Australia, Belarus, Belgium, Bulgaria, Brazil, Chile, China, Czechia, Ecuador, Finland, France, Germany, India, Italy, Japan, Netherlands, South Korea, New Zealand, Norway, Peru, Poland, Russia, South Africa, Spain, Sweden, Ukraine, UK, US, and Uruguay (2017)

in addition, during the austral summer some nations have numerous occupied locations such as tent camps, summer-long temporary facilities, and mobile traverses in support of research

Bouvet Island

uninhabited

French Southern and Antarctic Lands

no indigenous inhabitants

Ile Amsterdam (Ile Amsterdam et Ile Saint-Paul):
uninhabited but has a meteorological station
Ile Saint-Paul (Ile Amsterdam et Ile Saint-Paul):
uninhabited but is frequently visited by fishermen and has a scientific research cabin for short stays
Iles Crozet :
uninhabited except for 18 to 30 people staffing the Alfred Faure research station on Ile del la Possession
Iles Kerguelen:
50 to 100 scientists are located at the main base at Port-aux-Francais on Ile Kerguelen
Bassas da India (Iles Eparses):

uninhabitable

Europa Island, Glorioso Islands, Juan de Nova Island (Iles Eparses): a small French military garrison and a few meteorologists on each possession; visited by scientists

Tromelin Island (Iles Eparses):
uninhabited, except for visits by scientists

Heard Island and McDonald Islands

uninhabited

South Georgia and South Sandwich Islands now South Georgia and the South Sandwich Islands

(July 2021 est.) no indigenous inhabitants

note: the small military garrison on South Georgia withdrew in March 2001, replaced by a permanent group of scientists of the British Antarctic Survey, which also has a biological station on Bird Island; the South Sandwich Islands are uninhabited

Arctic Region

4 entries

Greenland

57,792 (2022 est.)

Iceland

357,603 (2022 est.)

Jan Mayen

no indigenous inhabitants

note: military personnel operate the the weather and coastal services radio station

Svalbard

2,926 (January 2021 est.)

Asia

23 entries

Afghanistan

38,346,720 (2022 est.)

Armenia

3,000,756 (2022 est.)

Azerbaijan

10,353,296 (2022 est.)

Bangladesh

165,650,475 (2022 est.)

Bhutan

867,775 (2022 est.)

British Indian Ocean Territory

no indigenous inhabitants

note: approximately 1,200 former agricultural workers resident in the Chagos Archipelago, often referred to as Chagossians or Ilois, were relocated to Mauritius and the Seychelles in the 1960s and 1970s; approximately 3,000 UK and US military personnel and civilian contractors living on the island of Diego Garcia (2018)

China

1,410,539,758 (2022 est.)

Georgia

4,935,518 (2022 est.)

India

1,389,637,446 (2022 est.)

Japan

124,214,766 (2022 est.)

Kazakhstan

19,398,331 (2022 est.)

Korea, North now North Korea

25,955,138 (2022 est.)

Korea, South now South Korea

51,844,834 (2022 est.)

Kyrgyzstan

6,071,750 (2022 est.)

Maldives

390,164 (2022 est.)

Mongolia

3,227,863 (2022 est.)

note: Mongolia is one of the least densely populated countries in the world (2 people per sq km); twice as many ethnic Mongols (some 6 million) live in Inner Mongolia (Nei Mongol) in neighboring China

Nepal

30,666,598 (2022 est.)

Pakistan

242,923,845 (2022 est.)

note: results of Pakistan's 2017 national census estimate the country's total population to be 207,684,626

Russia

142,021,981 (2022 est.)

Sri Lanka

23,187,516 (2022 est.)

Tajikistan

9,119,347 (2022 est.)

Turkmenistan

5,636,011 (2022 est.)

note: some sources suggest Turkmenistan's population could be as much as 1 to 2 million people lower than available estimates because of large-scale emigration during the last 10 years

Uzbekistan

31,104,937 (2022 est.)

Central America and the Caribbean

33 entries

Anguilla

18,741 (2022 est.)

Antigua and Barbuda

100,335 (2022 est.)

Aruba

122,320 (2022 est.)

Bahamas, The now The Bahamas

355,608 (2022 est.)

Barbados

302,674 (2022 est.)

Belize

412,387 (2022 est.)

British Virgin Islands

38,632 (2022 est.)

Cayman Islands

64,309 (2022 est.)

note: most of the population lives on Grand Cayman

Costa Rica

5,204,411 (2022 est.)

Cuba

11,008,112 (2022 est.)

Curacao

152,379 (2022 est.)

Dominica

74,629 (2022 est.)

Dominican Republic

10,694,700 (2022 est.)

El Salvador

6,568,745 (2022 est.)

Grenada

113,949 (2022 est.)

Guatemala

17,703,190 (2022 est.)

Haiti

11,334,637 (2022 est.)

Honduras

9,459,440 (2022 est.)

Jamaica

2,818,596 (2022 est.)

Montserrat

5,414 (2022 est.)

note: an estimated 8,000 refugees left the island following the resumption of volcanic activity in July 1995; some have returned

Navassa Island

uninhabited; transient Haitian fishermen and others camp on the island

Nicaragua

6,301,880 (2022 est.)

Panama

4,337,768 (2022 est.)

Puerto Rico

3,098,423 (2022 est.)

Saint Barthelemy

7,103 (2022 est.)

Saint Kitts and Nevis

54,488 (2022 est.)

Saint Lucia

167,122 (2022 est.)

Saint Martin

32,792 (2022 est.)

Saint Vincent and the Grenadines

100,969 (2022 est.)

Sint Maarten

45,126 (2022 est.)

Trinidad and Tobago

1,405,646 (2022 est.)

Turks and Caicos Islands

58,286 (2022 est.)

Virgin Islands

105,413 (2022 est.)

Europe

49 entries

Albania

3,095,344 (2022 est.)

Andorra

85,560 (2022 est.)

Austria

8,913,088 (2022 est.)

Belarus

9,413,505 (2022 est.)

Belgium

11,847,338 (2022 est.)

Bosnia and Herzegovina

3,816,459 (2022 est.)

Bulgaria

6,873,253 (2022 est.)

Croatia

4,188,853 (2022 est.)

Czechia

10,705,384 (2022 est.)

Denmark

5,920,767 (2022 est.)

Estonia

1,211,524 (2022 est.)

European Union

(July 2022 est.) 450,858,381

rank by population:
  • Germany - 84,316,622;
  • France - 68,305,148;
  • Italy - 61,095,551;
  • Spain - 47,163,418;
  • Poland - 38,093,101;
  • Romania - 18,519,899;
  • Netherlands - 17,400,824;
  • Belgium - 11,847,338;
  • Czechia - 10,705,384;
  • Greece - 10,533,871;
  • Sweden - 10,483,647;
  • Portugal - 10,242,081;
  • Hungary - 9,699,577;
  • Austria - 8,913,088;
  • Bulgaria - 6,873,253;
  • Denmark - 5,920,767;
  • Finland - 5,601,547;
  • Slovakia - 5,431,252;
  • Ireland - 5,275,004;
  • Croatia - 4,188,853;
  • Lithuania - 2,683,546;
  • Slovenia - 2,101,208;
  • Latvia - 1,842,226;
  • Cyprus - 1,295,102;
  • Estonia - 1,211,524;
  • Luxembourg - 650,364;
  • Malta - 464,186 (July 2022 est.)

Faroe Islands

52,269 (2022 est.)

Finland

5,601,547 (2022 est.)

France

68,305,148 (2022 est.)

note: the above figure is for metropolitan France and five overseas regions; the metropolitan France population is 62,814,233

Germany

84,316,622 (2022 est.)

Gibraltar

29,573 (2022 est.)

Greece

10,533,871 (2022 est.)

Guernsey

67,491 (2022 est.)

Holy See (Vatican City)

1,000 (2022 est.)

Hungary

9,699,577 (2022 est.)

Ireland

5,275,004 (2022 est.)

Isle of Man

91,382 (2022 est.)

Italy

61,095,551 (2022 est.)

Jersey

102,146 (2022 est.)

Kosovo

1,952,701 (2022 est.)

Latvia

1,842,226 (2022 est.)

Liechtenstein

39,711 (2022 est.)

note: immigrants make up 67% of the total population, according to UN data (2019)

Lithuania

2,683,546 (2022 est.)

Luxembourg

650,364 (2022 est.)

Malta

464,186 (2022 est.)

Moldova

3,287,326 (2022 est.)

Monaco

31,400 (2022 est.)

note: immigrants make up almost 68% of the total population, according to UN data (2019)

Montenegro

604,966 (2022 est.)

Netherlands

17,400,824 (2022 est.)

North Macedonia

2,130,936 (2022 est.)

Norway

5,553,840 (2022 est.)

Poland

38,093,101 (2022 est.)

Portugal

10,242,081 (2022 est.)

Romania

18,519,899 (2022 est.)

San Marino

34,682 (2022 est.)

Serbia

6,739,471 (2022 est.)

note: does not include the population of Kosovo

Slovakia

5,431,252 (2022 est.)

Slovenia

2,101,208 (2022 est.)

Spain

47,163,418 (2022 est.)

Sweden

10,483,647 (2022 est.)

Switzerland

8,508,698 (2022 est.)

Ukraine

43,528,136 (2022 est.)

United Kingdom

  • 67,791,400 (2022 est.) United Kingdom
  • constituent countries by percentage of total population:
  • England 84.3%
  • Scotland 8.1%
  • Wales 4.7%
  • Northern Ireland 2.8%

Middle East

19 entries

Akrotiri

(2020) approximately 18,195 on the Sovereign Base Areas of Akrotiri and Dhekelia including 11,000 Cypriots and 7,195 Service and UK-based contract personnel and dependents

Bahrain

1,540,558 (2022 est.)

note: immigrants make up approximately 45% of the total population, according to UN data (2019)

Cyprus

1,295,102 (2022 est.)

Dhekelia

approximately 15,500 on the Sovereign Base Areas of Akrotiri and Dhekelia including 9,700 Cypriots and 5,800 Service and UK-based contract personnel and dependents

Gaza Strip

1,997,328 (2022 est.)

Iran

86,758,304 (2022 est.)

Iraq

40,462,701 (2022 est.)

Israel

8,914,885 (2022 est.) (includes populations of the Golan Heights or Golan Sub-District and also East Jerusalem, which was annexed by Israel after 1967)

note: approximately 227,100 Israeli settlers live in East Jerusalem (2019); following the March 2019 US recognition of the Golan Heights as being part of Israel, The World Factbook no longer includes Israeli settler population of the Golan Heights (estimated at 23,400 in 2019) in its overall Israeli settler total

Jordan

10,998,531 (2022 est.)

note: increased estimate reflects revised assumptions about the net migration rate due to the increased flow of Syrian refugees

Kuwait

3,068,155 (2022 est.)

note: Kuwait's Public Authority for Civil Information estimates the country's total population to be 4,420,110 for 2019, with non-Kuwaitis accounting for nearly 70% of the population

Lebanon

5,296,814 (2022 est.)

Oman

3,764,348 (2022 est.)

note: immigrants make up approximately 46% of the total population (2019)

Qatar

2,508,182 (2022 est.)

Saudi Arabia

35,354,380 (2022 est.)

note: immigrants make up 38.3% of the total population, according to UN data (2019)

Syria

21,563,800 (2022 est.)

note: approximately 22,900 Israeli settlers live in the Golan Heights (2018)

Turkey (Turkiye) now Turkiye

83,047,706 (2022 est.)

United Arab Emirates

9,915,803 (2022 est.)

note: the UN estimated the country's total population was 10,082,000 as of 2022; immigrants make up 88.1% of the total population, according to UN data (2020)

West Bank

3,000,021 (2022 est.)

note: approximately 432,000 Israeli settlers live in the West Bank (2019); approximately 227,100 Israeli settlers live in East Jerusalem (2019)

Yemen

30,984,689 (2022 est.)

North America

6 entries

Bermuda

72,337 (2022 est.)

Canada

38,232,593 (2022 est.)

Clipperton Island

uninhabited

Mexico

129,150,971 (2022 est.)

Saint Pierre and Miquelon

5,257 (2022 est.)

United States

337,341,954 (2022 est.)

note: the US Census Bureau's 2020 census results show the US population as 331,449,281 as of 1 April 2020

Oceania

28 entries

American Samoa

45,443 (2022 est.)

Australia

26,141,369 (2022 est.)

Cook Islands

8,128 (2022 est.)

note: the Cook Islands' Ministry of Finance & Economic Management estimated the resident population to have been 11,700 in September 2016

Coral Sea Islands

(July 2021 est.) no indigenous inhabitants

note: there is a staff of four at the meteorological station on Willis Island

Fiji

943,737 (2022 est.)

French Polynesia

299,356 (2022 est.)

Guam

169,086 (2022 est.)

Kiribati

114,189 (2022 est.)

Marshall Islands

79,906 (2022 est.)

Micronesia, Federated States of now Federated States of Micronesia

101,009 (2022 est.)

Nauru

9,811 (2022 est.)

New Caledonia

297,160 (2022 est.)

New Zealand

5,053,004 (2022 est.)

Niue

2,000 (July 2022 est.)

note: because of the island's limited economic and educational opportunities, Niueans have emigrated for decades - primarily to New Zealand, but also to Australia and other Pacific island states; Niue's population peaked in 1966 at 5,194, but by 2005 had fallen to 1,508; since then it has rebounded slightly; as of 2013, 23,883 people of Niuean ancestry lived in New Zealand - with more than 20% Niue-born; this means that there are about 15 times as many persons of Niuean ancestry living in New Zealand as in Niue, possibly the most eccentric population distribution in the world

Norfolk Island

1,748 (2016 est.)

Northern Mariana Islands

51,475 (2022 est.)

Palau

21,695 (2022 est.)

Papua New Guinea

9,593,498 (2022 est.)

Pitcairn Islands

50 (2021 est.)

Samoa

206,179 (2022 est.)

Solomon Islands

702,694 (2022 est.)

Tokelau

1,647 (2019 est.)

Tonga

105,517 (2022 est.)

Tuvalu

11,544 (2022 est.)

United States Pacific Island Wildlife Refuges

no indigenous inhabitants

note: public entry is only by special-use permit from US Fish and Wildlife Service and generally restricted to scientists and educators; visited annually by US Fish and Wildlife Service

Jarvis Island:
  • Millersville settlement on western side of island occasionally used as a weather station from 1935 until World War II, when it was abandoned;
  • reoccupied in 1957 during the International Geophysical Year by scientists who left in 1958;
  • currently unoccupied
Johnston Atoll:
  • in previous years, an average of 1,100 US military and civilian contractor personnel were present;
  • as of May 2005, all US Government personnel had left the island
Midway Islands:
approximately 40 people make up the staff of US Fish and Wildlife Service and their services contractor living at the atoll
Palmyra Atoll:
four to 20 Nature Conservancy, US Fish and Wildlife staff, and researchers

Vanuatu

308,043 (2022 est.)

Wake Island

(2018 est.) no indigenous inhabitants

note: approximately 100 military personnel and civilian contractors maintain and operate the airfield and communications facilities

Wallis and Futuna

15,891 (2022 est.)

South America

13 entries

Argentina

46,245,668 (2022 est.)

Bolivia

12,054,379 (2022 est.)

Brazil

217,240,060 (2022 est.)

Chile

18,430,408 (2022 est.)

Colombia

49,059,221 (2022 est.)

Ecuador

17,289,554 (2022 est.)

Falkland Islands (Islas Malvinas)

3,198 (2016 est.)

note: data include all persons usually resident in the islands at the time of the 2016 census

Guyana

789,683 (2022 est.)

Paraguay

7,356,409 (2022 est.)

Peru

32,275,736 (2022 est.)

Suriname

632,638 (2022 est.)

Uruguay

3,407,213 (2022 est.)

Venezuela

29,789,730 (2022 est.)

Southeast Asia

19 entries

Ashmore and Cartier Islands

(July 2021 est.) no indigenous inhabitants

note: Indonesian fishermen are allowed access to the lagoon and fresh water at Ashmore Reef's West Island; access to East and Middle Islands is by permit only

Brunei

478,054 (2022 est.)

note: immigrants make up approximately 26% of the total population, according to UN data (2019)

Burma now Burma (Myanmar)

57,526,449 (2022 est.)

Cambodia

16,713,015 (2022 est.)

Christmas Island

2,205 (2016 est.)

Cocos (Keeling) Islands

596 (July 2014 est.)

Hong Kong

7,276,588 (2022 est.)

Indonesia

277,329,163 (2022 est.)

Laos

7,749,595 (2022 est.)

Macau

635,293 (2022 est.)

Malaysia

33,871,431 (2022 est.)

Paracel Islands

1,440 (July 2014 est.)

note: Chinese activity has increased in recent years, particularly on Woody Island, where the population exceeds 1,000; there are scattered Chinese garrisons on some other islands

Philippines

114,597,229 (2022 est.)

Singapore

5,921,231 (2022 est.)

Spratly Islands

(July 2021 est.) no indigenous inhabitants

note: there are scattered garrisons occupied by military personnel of several claimant states

Taiwan

23,580,712 (2022 est.)

Thailand

69,648,117 (2022 est.)

Timor-Leste

1,445,006 (2022 est.)

Vietnam

103,808,319 (2022 est.)

Cite this page

Central Intelligence Agency. The World Factbook 2022, “Population”, all entries. Archived by The Factbook, thefactbook.org/fields/population/2022.

How to cite