Age structure:
0-14 years: 38% (male 3,524,406; female 3,319,323)
15-64 years: 58.7% (male 5,421,133; female 5,163,669)
65 years and over: 3.3% (male 281,795; female 306,548) (2004 est.)
Median age:
total: 20 years
male: 19.9 years
female: 20.2 years (2004 est.)
Population growth rate:
2.4% (2004 est.)
Birth rate:
28.93 births/1,000 population (2004 est.)
Death rate:
4.96 deaths/1,000 population (2004 est.)
Net migration rate:
0 migrant(s)/1,000 population (2004 est.)
Sex ratio:
at birth: 1.06 male(s)/female
under 15 years: 1.06 male(s)/female
15-64 years: 1.05 male(s)/female
65 years and over: 0.92 male(s)/female
total population: 1.05 male(s)/female (2004 est.)
Infant mortality rate:
total: 30.6 deaths/1,000 live births
female: 30.35 deaths/1,000 live births (2004 est.)
male: 30.82 deaths/1,000 live births
Life expectancy at birth:
total population: 69.71 years
male: 68.47 years
female: 71.02 years (2004 est.)
Total fertility rate:
3.61 children born/woman (2004 est.)