Year U.S. Dollars 2000-01-01 18213000000 2001-01-01 21715000000 2002-01-01 29482000000 2003-01-01 39299000000 2004-01-01 48986300000 2005-01-01 54570000000 2006-01-01 62134000000 2007-01-01 73872000000 2008-01-01 88247000000 2009-01-01 87400000000 2010-01-01 95488000000 2011-01-01 95456000000 2012-01-01 82438000000 2013-01-01 75163000000 2014-01-01 88657200000 2015-01-01 73969200000 2016-01-01 79527700000 2017-01-01 91585100000 2018-01-01 103254500000 2019-01-01 103688500000