Year	U.S. Dollars
2000-01-01	13496600000
2001-01-01	14390600000
2002-01-01	15591500000
2003-01-01	21162900000
2004-01-01	25111300000
2005-01-01	39406300000
2006-01-01	59290400000
2007-01-01	79494200000
2008-01-01	91884000000
2009-01-01	99366000000
2010-01-01	103583400000
2011-01-01	106142100000
2012-01-01	118886000000
2013-01-01	118834600000
2014-01-01	88668800000
2015-01-01	70980600000
2016-01-01	64570300000
2017-01-01	56817400000
2018-01-01	39661200000
2019-01-01	23004500000