Age structure:
0-14 years: 41.2% (male 3,614,430/female 3,531,047)
15-64 years: 55.5% (male 4,835,453/female 4,796,276)
65 years and over: 3.2% (male 260,342/female 303,154) (2006 est.)
Median age:
total: 18.9 years
male: 18.7 years
female: 19 years (2006 est.)
Population growth rate:
2.04% (2006 est.)
Birth rate:
33.89 births/1,000 population (2006 est.)
Death rate:
13.47 deaths/1,000 population (2006 est.)
Net migration rate:
0 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: 1.01 male(s)/female
65 years and over: 0.86 male(s)/female
total population: 1.01 male(s)/female (2006 est.)
Infant mortality rate:
total: 63.52 deaths/1,000 live births
male: 67.38 deaths/1,000 live births
female: 59.53 deaths/1,000 live births (2006 est.)
Life expectancy at birth:
total population: 51.16 years
male: 50.98 years
female: 51.34 years (2006 est.)
Total fertility rate:
4.39 children born/woman (2006 est.)