Net migration rate: 0.27 migrant(s)/1,000 population (2002 est.)
Sex ratio: at birth: 1.03 male(s)/female under 15 years: 1.01 male(s)/female 15-64 years: 1.04 male(s)/female 65 years and over: 0.99 male(s)/female total population: 1.03 male(s)/female (2002 est.)
Infant mortality rate: 72.49 deaths/1,000 live births (2002 est.)
Life expectancy at birth: 50.6 years (2002 est.) male: Total fertility rate: 5.49 children born/woman (2002 est.)
HIV/AIDS - adult prevalence rate: 5.06% (1999 est.)
HIV/AIDS - people living with HIV/AIDS: 2.7 million (1999 est.)
HIV/AIDS - deaths: 250,000 (1999 est.)
Nationality: noun: Nigerian(s) adjective: Nigerian
Ethnic groups: Nigeria, which is Africa's most populous country, is composed of more than 250 ethnic groups; the following are the most populous and politically influential: Hausa and Fulani 29%, Yoruba 21%, Igbo (Ibo) 18%, Ijaw 10%, Kanuri 4%, Ibibio 3.5%, Tiv 2.5%
Religions: Muslim 50%, Christian 40%, indigenous beliefs 10%