Age structure:
0-14 years: 43.5% (male 2,812,359/female 2,759,047)
15-64 years: 53.7% (male 3,496,726/female 3,382,440)
65 years and over: 2.7% (male 153,678/female 195,043) (2010 est.)
Median age:
total: 18 years
male: 18 years
female: 18 years (2010 est.)
Population growth rate:
2.063% (2010 est.) country comparison to the world: 49