Population:
3,639,453 (July 2009 est.) country comparison to the world: 129
Age structure:
0-14 years: 23.1% (male 440,528/female 400,816)
15-64 years: 67.1% (male 1,251,001/female 1,190,841)
65 years and over: 9.8% (male 165,557/female 190,710) (2009 est.)
Median age:
total: 29.9 years
male: 29.3 years
female: 30.6 years (2009 est.)