Age structure:
0-14 years: 42.3% (male 28,089,017/female 27,665,212)
15-64 years: 54.6% (male 36,644,885/female 35,405,915)
65 years and over: 3.1% (male 1,930,007/female 2,124,695) (2006 est.)
Median age:
total: 18.7 years
male: 18.7 years
female: 18.6 years (2006 est.)
Population growth rate:
2.38% (2006 est.)
Birth rate:
40.43 births/1,000 population (2006 est.)
Death rate:
16.94 deaths/1,000 population (2006 est.)
Net migration rate:
0.27 migrant(s)/1,000 population (2006 est.)
Sex ratio:
at birth: 1.03 male(s)/female
under 15 years: 1.02 male(s)/female
15-64 years: 1.04 male(s)/female
65 years and over: 0.91 male(s)/female
total population: 1.02 male(s)/female (2006 est.)
Infant mortality rate:
total: 97.14 deaths/1,000 live births
male: 104.05 deaths/1,000 live births
female: 90.02 deaths/1,000 live births (2006 est.)
Life expectancy at birth:
total population: 47.08 years
male: 46.52 years
female: 47.66 years (2006 est.)
Total fertility rate:
5.49 children born/woman (2006 est.)