Population: 57,591,677 (July 1997 est.)
Age structure: 0-14 years: 19% (male 5,647,549; female 5,386,750) 15-64 years : 65% (male 18,532,243; female 18,757,168) 65 years and over: 16% (male 3,808,399; female 5,459,568) (July 1997 est.)
Population growth rate: 0.24% (1997 est.)
Birth rate: 11.83 births/1,000 population (1997 est.)
Death rate: 10.77 deaths/1,000 population (1997 est.)
Net migration rate: 1.32 migrant(s)/1,000 population (1997 est.)
Sex ratio: at birth : 1.05 male(s)/female under 15 years: 1.05 male(s)/female 15-64 years : 0.99 male(s)/female 65 years and over: 0.7 male(s)/female total population: 0.94 male(s)/female (1997 est.)
Infant mortality rate: 6 deaths/1,000 live births (1997 est.)
Life expectancy at birth: total population: 77.25 years male: 74.67 years female: 79.96 years (1997 est.)
Total fertility rate: 1.65 children born/woman (1997 est.)