Age structure: 0-14 years: 44.07% (male 2,279,996; female 2,252,255)
15-64 years: 52.88% (male 2,603,829; female 2,834,328)
65 years and over: 3.05% (male 155,877; female 158,644) (2001 est.)
Population growth rate: 2.93% (2001 est.)
Birth rate: 37.46 births/1,000 population (2001 est.)
Death rate: 8.35 deaths/1,000 population (2001 est.)
Net migration rate: 0.21 migrant(s)/1,000 population (2001 est.)
Sex ratio: at birth: 1.03 male(s)/female
under 15 years: 1.01 male(s)/female
15-64 years: 0.92 male(s)/female