Population: 707,954 (July 1998 est.) Age structure: 0-14 years: 31% (male 112,339; female 108,095) 15-64 years: 64% (male 228,719; female 226,309) 65 years and over: 5% (male 14,652; female 17,840) (July 1998 est.) Population growth rate: -0.47% (1998 est.) Birth rate: 18.49 births/1,000 population (1998 est.) Death rate: 8.72 deaths/1,000 population (1998 est.) Net migration rate: -14.45 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: 1.01 male(s)/female 65 years and over: 0.82 male(s)/female (1998 est.) Infant mortality rate: 48.67 deaths/1,000 live births (1998 est.) Life expectancy at birth: total population: 62.34 years male: 59.5 years female: 65.32 years (1998 est.) Total fertility rate: 2.12 children born/woman (1998 est.) Nationality: noun: Guyanese (singular and plural) adjective: Guyanese Ethnic groups: East Indian 49%, black 32%, mixed 12%, Amerindian 6%, white and Chinese 1% Religions: Christian 57%, Hindu 33%, Muslim 9%, other 1% Languages: English, Amerindian dialects Literacy: definition: age 15 and over has ever attended school total population: 98.1% male: 98.6% female: 97.5% (1995 est.)