Anglo-America consists of 23 sovereign states and 9 dependencies, which cover all of North America north of Mexico, and also includes the Yucatán, parts of Central America, Guyana, and several of the Caribbean islands. Anglo-America is highly organized and developed, and the primary region of focus on the Conference of American States, a politico-economic union comprising virtually all of the Anglo-American states with the exception of Guyana. Having a population of over 437.5 million, Anglo-America has a combined GDP of over $18 billion (nominal and PPP), making it the first or second largest economy in the world, if it were treated as a single country, depending on whichever source is used.