Age structure:
0-14 years: 44.1% (male 1,751,709/female 1,719,138)
15-64 years: 53.5% (male 2,067,248/female 2,138,957)
65 years and over: 2.4% (male 75,694/female 110,198) (2006 est.)
Median age:
total: 17.6 years
male: 17.2 years
female: 18 years (2006 est.)
Population growth rate:
2.73% (2006 est.)
Birth rate:
38.85 births/1,000 population (2006 est.)
Death rate:
12.22 deaths/1,000 population (2006 est.)
Net migration rate:
0.67 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: 0.97 male(s)/female
65 years and over: 0.69 male(s)/female
total population: 0.98 male(s)/female (2006 est.)
Infant mortality rate:
total: 79.56 deaths/1,000 live births
male: 84.09 deaths/1,000 live births
female: 74.88 deaths/1,000 live births (2006 est.)
Life expectancy at birth:
total population: 53.04 years
male: 51.9 years
female: 54.22 years (2006 est.)
Total fertility rate:
5.2 children born/woman (2006 est.)