Horn of Africa at the 2012 London Olympics. According to the IMF, in 2010 the Horn of Africa region had a total GDP (PPP) of $106.224 billion and nominal of $35.819 billion. Per capita, the GDP in 2010 was $1061 (PPP) and $358 (nominal). States of the region depend largely on a few key exports: Over 95% of cross-border trade within the region is unofficial and undocumented, carried out by pastoralists trading livestock. The unofficial trade of live cattle, camels, sheep and goats from Ethiopia sold to other countries in the Horn and the wider Eastern Africa region, including Somalia and Djibouti, generates
Geography of Somalia the northeast, "Boswellia" and "Commiphora" trees are sources, respectively, of the frankincense and myrrh for which Somalia has been known since ancient times. A broad plateau encompassing the northern city of Hargeysa, which receives comparatively heavy rainfall, is covered naturally by woodland (much of which has been degraded by overgrazing) and in places by extensive grasslands. Parts of this area have been under cultivation since the 1930s, producing sorghum and maize; in the 1990s it constituted the only significant region of sedentary cultivation outside southwestern Somalia. The Haud south of Hargeysa is covered mostly by a semiarid woodland of scattered