Population: 35,797,985 (July 1997 est.)
Age structure: 0-14 years: 28% (male 5,042,521; female 4,855,874) 15-64 years : 62% (male 11,133,884; female 11,155,104) 65 years and over: 10% (male 1,499,538; female 2,111,064) (July 1997 est.)
Population growth rate: 1.3% (1997 est.)
Birth rate: 20.01 births/1,000 population (1997 est.)
Death rate: 7.68 deaths/1,000 population (1997 est.)
Net migration rate: 0.67 migrant(s)/1,000 population (1997 est.)
Sex ratio: at birth: 1.05 male(s)/female under 15 years: 1.04 male(s)/female 15-64 years: 1 male(s)/female 65 years and over: 0.71 male(s)/female total population: 0.98 male(s)/female (1997 est.)
Infant mortality rate: 19.6 deaths/1,000 live births (1997 est.)
Life expectancy at birth: total population: 74.31 years male: 70.67 years female: 78.12 years (1997 est.)
Total fertility rate: 2.69 children born/woman (1997 est.)