The Oku people, also commonly known as Oku Mohammedans or "Aku Mohammedans"in Sierra Leone and as the "Aku Marabou" or "Oku Marabou" in the Gambia, are an ethnic group in Sierra Leone and the Gambia.
 The Oku people are the descendants of liberated Africans of Yoruba descent from Southwest Nigeria who were liberated or came to Sierra Leone as settlers in the mid 19th century and formed a distinctive ethnic group The Oku are virtually all Muslims and are known for their conservative muslim population.
 The British colonial government provided official recognition to the Oku Mohammedan community as a distinctive community in Sierra Leone.
 Although the Sierra Leone government officially considered the Oku people as members of the Creole ethnic group, many Sierra Leoneans consider the Oku people as a distinctive ethnic group.
The Konkomba people are a Gur ethnic group residing mainly in the Northern, Brong Ahafo, Volta, Eastern and Greater Accra Regions of Ghana.
 Saboba, Chereponi and Nanumba Districts, Gushiegu and Karaga districts, Zabzugu and Tatale-Sanguli districts in the Northern Region and the Nkwanta North and South Districts in the Volta Region are a few examples of administrative districts where Bikpakpaam are seen in huge populations.
 Other key towns of Bikpakpaam in Ghana are Atebubu, Kintampo, Techiman and Yeji in the Brong Ahafo Region.
 According to the Act 280 of the Anatomy act of Ghana, the Konkomba people (known as Bikpakpaam) are the second largest ethnic group in the Northern Region of Ghana.
 The 2010 census data indicates that Bikpakpaam in Ghana number 823,000 and applying the intercensal growth rate would give a population of more than one million now.
 CIA The World Factbook reports in Demographics of Ghana that Konkomba people are the 8th largest Ethnic group in Ghana representing 3.5% of the Total population of Ghana.
 Saboba (Chabob) in the Northern Region of Ghana is the capital town of all Bikpakpaam in Ghana.
 Bikpakpaam are also found in the republic of Togo, a sister West African country to Ghana.
 In Togo Bikpakpaam reside mainly in the Kara, Central and Plateaux Regions.
 Guerin Kouka (a.k.a. Nanguem Do, the capital of Dankpen district) in the Kara Region is the capital town of Bikpakpaam in Togo.
 Dankpen district is located in the north western corridor of Togo.
 In Schwartz's (2005) account, Bikpakpaam number about 50,100 in Togo.
 The 2011 census in Togo indicates however that the total population of Bikpakpaam in Dankpen district alone was 122,209.
 Visit Konkomba language for more information.
 Konkomba people speak Konkomba language a.k.a Likpakpaln.
 The traditional dance of Konkomba people is Kinachunŋ (pronounced k-i-naa-chung).
 All Konkomba settlements are led by a traditional chief called Ubor.
 In Bikpakpaam dominant areas, the people have instituted or established their own chieftains who serve as overlords of the settlements.
 For instance, the Saboba area has the Uchabob-bor as the overlord.
 Bikpakpaam strongly believe in solidarity, determination and hard-work.
 Until the turn of the 21st century, their primary occupation was farming and animal husbandry.
 In occupational terms, Bikpakpaam are mainly subsistence farmers and rearers of animals such as poultry, small ruminants and cattle.
 This, probably, explains their scattered settlement across the West African sub-region.
 Indeed, Maasole intimates that Bikpakpaam have always been on the move, in search for fertile farmlands.
 Most Konkombas are actively in education today and a recent research projects that Konkombas will become a dominant force in politics, health, education and the civil society by 2025.
The Ewe people (Ewe: "Eʋeawó" , lit.
 "Ewe people"; or " Eʋedukɔ́ ", lit.
 "Ewe nation","Eʋenyigba" Eweland;) are an African ethnic group.
 They are the largest ethnic group in Togo (32%), the third largest ethnic group in Ghana (14%), and are a minority ethnic group in southern Benin, Ivory Coast and Nigeria.
 They speak the Ewe language (Ewe: "Eʋegbe" ) which belongs to the Niger-Congo family of languages.
 They are related to other speakers of Gbe languages, such as, the Fon, Gen, Phla Phera, and the Aja people of Togo and Benin.
Mira Nair (born 15 October 1957) is an Indian American filmmaker based in New York City.
 Her production company, Mirabai Films, specializes in films for international audiences on Indian society, whether in the economic, social or cultural spheres.
 Among her best known films are "Mississippi Masala", "The Namesake", the Golden Lion-winning "Monsoon Wedding" and "Salaam Bombay!
", which was nominated for the Academy Award for Best Foreign Language Film.
Indian Americans or Indo-Americans are Americans whose ancestry belongs to any of the many ethnic groups of the Republic of India.
 As the most socio-economically successful minority ethnic group in the U.S., Indian Americans comprise 4 million people, representing around 1% of the U.S. population as of 2015.
 Indian Americans are the country's third-largest Asian group alone or in combination with other races after Chinese Americans and Filipino Americans, according to 2015 American Community Survey data.
 The U.S. Census Bureau uses the term Asian Indian to avoid confusion with the indigenous peoples of the Americas commonly referred to as American Indians (or Native Americans).
The Basketo people are an Omotic-speaking ethnic group whose homeland lies in the southern part of the Southern Nations, Nationalities, and Peoples Region (SNNPR) of Ethiopia.
 The Basketo special woreda is named after this ethnic group.
 According to the 2007 Ethiopian national census, this ethnic group has 78,284 members, of whom 99.3% live in the SNNPR.
Azerbaijanis ( ) or Azeris (Azerbaijani: "Azərbaycanlılar" آذربایجانلیلار, "Azərilər" آذریلر), also known as Azerbaijani Turks (Azerbaijani: "Azərbaycan türkləri" آذربایجان تورکلری), are a Turkic ethnic group living mainly in Iranian Azerbaijan and the independent Republic of Azerbaijan.
 They are the second-most numerous ethnic group among the Turkic peoples after Anatolian Turks.
 They are predominantly Shi'i Muslims, and have a mixed cultural heritage, including Turkic, Iranian, and Caucasian elements.
 They comprise the largest ethnic group in Republic of Azerbaijan and by far the second-largest ethnic group in neighboring Iran.
 The world's largest number of ethnic Azerbaijanis live in Iran, followed by Azerbaijan.
Greek Australians (Greek: Ελληνοαυστραλοί , "Ellinoafstrali" ) comprise Australian citizens who have full or partial Greek heritage or people who seek asylum as refugees after Greek Civil War or emigrated from Greece and reside in Australia.
 The 2011 census recorded 378,270 people of Greek ancestry, and 99,939 born in Greece, making Australia home to one of the largest Greek communities in the world.
 Greeks are the seventh largest ethnic group in Australia, after those who declared their ancestry simply as "Australian".
 In the 2006 census, 365,147 people reported to have Greek ancestry, either exclusively or in combination with another ethnic group.
 Also, the 2006 census recorded 125,849 people born in Greece and 21,149 born in Cyprus (many of whom are Greek Cypriots).
Several ethnic groups of the People's Republic of China are not officially recognized.
 Taken together, these groups (未识别民族 "wèi shíbié mínzú)" number more than 730,000 people; if considered as a single group, they would constitute the twentieth most populous ethnic group of China.
 Some scholars have estimated that there are over 200 distinct ethnic groups that inhabit China.
 There are in addition small distinct ethnic groups that have been classified as part of larger ethnic groups that are officially recognized.
 Some groups like the Hui of Xinjiang with the Hui of Fujian are geographically and culturally separate except for the shared belief of Islam.
 Han Chinese being the world's largest ethnic group has a large diversity within it, such as in Gansu, the Han here may have genetic traits from the assimilated Tangut civilization.
 Although they are indigenous to Hainan island and do not speak a Chinese language, the Limgao (Ong-Be) people near the capital (8% of the population) are counted as Han Chinese.
The Akyem are an Akan people.
 The term Akyem (Akim or Aki) is used to describe a group of three states: Akyem Abuakwa, Akyem Kotoku and Akyem Bosome.
 These nations are located primarily in the eastern region.
 The term is also used to describe the general area where the Akyem ethnic group clusters.
 The Akyem ethnic group make up between 3-9 percent of Ghana's population depending on how one defines the group and are very prominent in all aspects of Ghanaian life.
 The Akyem are a matrilineal people.
 The history of this ethnic group is that of brave warriors who managed to create a thriving often influential and relatively independent state within modern-day Ghana .
 When one talks of Ghanaian history, there is often mention of The Big Six).
 These were six individuals who played a big role in the independence of Ghana.
 Of the big six, people of Akyem descent made up the majority.

Question: How many people, as of the 2015 census, comprise the ethnic group in which Mira Nair is part of?
Answer: 4 million