Trying to be useful:

Population

22,530,746 (July 2012 est.)
Age structure

0–14 years: 35.2% (male 4,066,109/female 3,865,817)
15–64 years: 61% (male 6,985,067/female 6,753,619)
65 years and older: 3.8% (male 390,802/female 456,336) (2011 est.)
Median age

total
21.9 years male
21.7 years female
22.1 years (2011 est.)