| http://www.w3.org/ns/prov#value | - The United States Of America is on no 1 in the list of Top 10 Richest Countries in the World, The United States is a capitalist economy that spends fairly little on social programs as a percent of GDP. The U.S. economy is the world???s largest national economy, with an estimated GDP of $15.1 trillion in 2011.
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