28,951,852 (July 2010 est.) country comparison to the world: 42
Age structure:
0-14 years: 36.6% (male 5,327,484/female 5,127,178)
15-64 years: 59.2% (male 8,094,494/female 8,812,675)
65 years and over: 4.2% (male 566,666/female 634,880) (2010 est.)
Median age:
total: 21.2 years
male: 20.2 years
female: 22.1 years (2010 est.)
Population growth rate: