Age structure:
0-14 years: 42.4% (male 1,770,523/female 1,749,853)
15-64 years: 54.2% (male 2,201,957/female 2,301,886)
65 years and over: 3.4% (male 125,298/female 158,987) (2006 est.)
Median age:
total: 18.2 years
male: 17.8 years
female: 18.6 years (2006 est.)
Population growth rate:
2.3% (2006 est.)
Birth rate:
36.44 births/1,000 population (2006 est.)
Death rate:
12.17 deaths/1,000 population (2006 est.)
Net migration rate:
-1.31 migrant(s)/1,000 population (2006 est.)
Sex ratio:
at birth: 1.03 male(s)/female
under 15 years: 1.01 male(s)/female
15-64 years: 0.96 male(s)/female
65 years and over: 0.79 male(s)/female
total population: 0.97 male(s)/female (2006 est.)
Infant mortality rate:
total: 71.65 deaths/1,000 live births
male: 78.01 deaths/1,000 live births
female: 65.1 deaths/1,000 live births (2006 est.)
Life expectancy at birth:
total population: 53.23 years
male: 51.89 years
female: 54.6 years (2006 est.)
Total fertility rate:
4.94 children born/woman (2006 est.)