Age structure:
0-14 years: 50% (male 8,152,830/female 8,034,366)
15-64 years: 47.9% (male 7,789,209/female 7,703,143)
65 years and over: 2.1% (male 286,693/female 403,317) (2009 est.)
Median age:
total: 15 years
male: 14.9 years
female: 15.1 years (2009 est.)
Population growth rate:
2.692% (2009 est.) country comparison to the world: 24