Population growth rate: 3.14% (1999 est.)
Birth rate: 43.31 births/1,000 population (1999 est.)
Death rate: 8.08 deaths/1,000 population (1999 est.)
Net migration rate: -3.88 migrant(s)/1,000 population (1999 est.)
Sex ratio:
at birth: 1.03 male(s)/female
under 15 years: 1.02 male(s)/female
15-64 years: 0.93 male(s)/female
65 years and over: 0.83 male(s)/female
total population: 0.97 male(s)/female (1999 est.)
Infant mortality rate: 52.93 deaths/1,000 live births (1999 est.)
Life expectancy at birth: total population: 64.71 years male: 63.18 years female: 66.28 years (1999 est.)
Total fertility rate: 6.14 children born/woman (1999 est.)
Nationality: noun: Sao Tomean(s) adjective: Sao Tomean
Ethnic groups: mestico, angolares (descendants of Angolan slaves), forros (descendants of freed slaves), servicais (contract laborers from Angola, Mozambique, and Cape Verde), tongas (children of servicais born on the islands), Europeans (primarily Portuguese)