0-14 years: 46.2% (male 2,087,315/female 2,063,518)
15-64 years: 51.3% (male 2,291,123/female 2,320,839)
65 years and over: 2.5% (male 89,444/female 135,852) (2009 est.)
Median age:
total: 16.7 years
male: 16.5 years
female: 17 years (2009 est.)
Population growth rate:
3.279% (2009 est.) country comparison to the world: 7
Birth rate: