Population: 3,600,158 (July 1998 est.)
Age structure: 0-14 years: 20% (male 376,034; female 360,446) 15-64 years: 67% (male 1,155,733; female 1,238,671) 65 years and over: 13% (male 159,526; female 309,748) (July 1998 est.)
Population growth rate: -0.45% (1998 est.)
Birth rate: 10.57 births/1,000 population (1998 est.)
Death rate: 12.94 deaths/1,000 population (1998 est.)
Net migration rate: -2.09 migrant(s)/1,000 population (1998 est.)
Sex ratio: at birth: 1.05 male(s)/female under 15 years: 1.04 male(s)/female 15-64 years: 0.93 male(s)/female 65 years and over: 0.52 male(s)/female (1998 est.)
Infant mortality rate: 14.75 deaths/1,000 live births (1998 est.)
Life expectancy at birth: total population: 68.83 years male: 62.76 years female: 75.21 years (1998 est.)
Total fertility rate: 1.46 children born/woman (1998 est.)