U.S. Dollar (or American dollar) is the official currency in the U.S. and the major global reserve currency. Currently, the Federal Reserve controls the money circulation in the U.S. The most commonly used symbol for the U.S. dollar is the sign "$". In 1995 over 380 billion dollars are in use, as two-thirds of them are located outside the U.S. In April 2004 the dollars in use are nearly 700 billion and again approximately half of them are outside the U.S.
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