40,218,456 (July 2008 est.)
Age structure:
0-14 years: 41.1% (male 8,451,576/female 8,093,609) 15-64 years: 56.4% (male 11,407,233/female 11,275,685) 65 years and over: 2.5% (male 518,822/female 471,530) (2008 est.)
Median age:
total: 18.9 years male: 18.7 years female: 19.1 years (2008 est.)
Population growth rate:
2.134% (2008 est.)
Birth rate:
34.31 births/1,000 population (2008 est.)
Death rate: