Population:
31,056,997 (July 2006 est.)
Age structure:
0-14 years: 44.6% (male 7,095,117/female 6,763,759)
15-64 years: 53% (male 8,436,716/female 8,008,463)
65 years and over: 2.4% (male 366,642/female 386,300) (2006 est.)
Median age:
total: 17.6 years
male: 17.6 years
female: 17.6 years (2006 est.)
Population growth rate:
2.67% (2006 est.)
Birth rate:
46.6 births/1,000 population (2006 est.)
Death rate:
20.34 deaths/1,000 population (2006 est.)
Net migration rate:
0.42 migrant(s)/1,000 population (2006 est.)
Sex ratio:
at birth: 1.05 male(s)/female
under 15 years: 1.05 male(s)/female
15-64 years: 1.05 male(s)/female
65 years and over: 0.95 male(s)/female
total population: 1.05 male(s)/female (2006 est.)
Infant mortality rate:
total: 160.23 deaths/1,000 live births
male: 164.77 deaths/1,000 live births
female: 155.45 deaths/1,000 live births (2006 est.)
Life expectancy at birth:
total population: 43.34 years
male: 43.16 years
female: 43.53 years (2006 est.)