Population: 616,342 (July 1998 est.) note: includes 224,640 non-nationals (July 1998 est.)
Age structure: 0-14 years: 31% (male 95,871; female 93,232) 15-64 years: 67% (male 245,099; female 164,946) 65 years and over: 2% (male 8,799; female 8,395) (July 1998 est.)
Population growth rate: 2.09% (1998 est.)
Birth rate: 22.43 births/1,000 population (1998 est.)
Death rate: 3.25 deaths/1,000 population (1998 est.)
Net migration rate: 1.73 migrant(s)/1,000 population (1998 est.)
Sex ratio: at birth: 1.03 male(s)/female under 15 years: 1.03 male(s)/female 15-64 years: 1.49 male(s)/female 65 years and over: 1.05 male(s)/female (1998 est.)
Infant mortality rate: 15.54 deaths/1,000 live births (1998 est.)
Life expectancy at birth: total population: 74.96 years male: 72.42 years female: 77.57 years (1998 est.)
Total fertility rate: 3.01 children born/woman (1998 est.)