Population: 30,675,398 (July 1998 est.)
Age structure: 0-14 years: 20% (male 3,106,331; female 2,961,328) 15-64 years: 68% (male 10,457,686; female 10,328,953) 65 years and over: 12% (male 1,619,704; female 2,201,396) (July 1998 est.)
Population growth rate: 1.09% (1998 est.)
Birth rate: 12.12 births/1,000 population (1998 est.)
Death rate: 7.25 deaths/1,000 population (1998 est.)
Net migration rate: 6.03 migrant(s)/1,000 population (1998 est.)
Sex ratio: at birth: 1.05 male(s)/female under 15 years: 1.05 male(s)/female 15-64 years: 1.01 male(s)/female 65 years and over: 0.74 male(s)/female (1998 est.)
Infant mortality rate: 5.59 deaths/1,000 live births (1998 est.)
Life expectancy at birth: total population: 79.16 years male: 75.86 years female: 82.63 years (1998 est.)
Total fertility rate: 1.65 children born/woman (1998 est.)