Age structure:
0-14 years: 42.6% (male 3,118,396; female 2,970,729)
15-64 years: 54% (male 3,898,939; female 3,817,435)
65 years and over: 3.3% (male 221,154; female 253,943) (2004 est.)
Median age:
total: 18.4 years
male: 18.1 years
female: 18.6 years (2004 est.)
Population growth rate:
2.61% (2004 est.)
Birth rate:
34.58 births/1,000 population (2004 est.)
Death rate:
6.79 deaths/1,000 population (2004 est.)
Net migration rate:
-1.67 migrant(s)/1,000 population (2004 est.)
Sex ratio:
at birth: 1.05 male(s)/female
under 15 years: 1.05 male(s)/female
15-64 years: 1.02 male(s)/female
65 years and over: 0.87 male(s)/female
total population: 1.03 male(s)/female (2004 est.)
Infant mortality rate:
total: 36.91 deaths/1,000 live births
female: 36.07 deaths/1,000 live births (2004 est.)
male: 37.71 deaths/1,000 live births
Life expectancy at birth:
total population: 65.19 years
male: 64.3 years
female: 66.13 years (2004 est.)
Total fertility rate:
4.6 children born/woman (2004 est.)