2000 2006 Social indicators Population, total 2966000 3740886 Population growth (annual %) 4 3 Environment Surface area (sq. km) 6020 6020 Social indicators Life expectancy at birth, total (years) 72 .. Mortality rate, infant (per 1,000 live births) 24 .. Literacy rate, youth female (% of females ages 15-24) .. .. National accounts GNI (current US$) 4783060992 4190242304 GNI per capita, Atlas method (current US$) 1580 .. Social indicators Prevalence of HIV, total (% of population ages 15-49) .. ..