Population: 16,387,963 (July 1998 est.) note: other estimates range as high as 16.6 million
Age structure: 0-14 years: 48% (male 4,016,052; female 3,859,079) 15-64 years: 49% (male 4,066,601; female 3,902,686) 65 years and over: 3% (male 280,152; female 263,393) (July 1998 est.)
Population growth rate: 3.31% (1998 est.)
Birth rate: 43.36 births/1,000 population (1998 est.)
Death rate: 10.27 deaths/1,000 population (1998 est.)
Net migration rate: 0 migrant(s)/1,000 population (1998 est.)
Sex ratio: at birth: 1.05 male(s)/female under 15 years: 1.04 male(s)/female 15-64 years: 1.04 male(s)/female 65 years and over: 1.06 male(s)/female (1998 est.)
Infant mortality rate: 72.2 deaths/1,000 live births (1998 est.)
Life expectancy at birth: total population: 59.47 years male: 57.71 years female: 61.32 years (1998 est.)
Total fertility rate: 7.14 children born/woman (1998 est.)