Year U.S. Dollars 2000-01-01 38858600000 2001-01-01 39459700000 2002-01-01 42238400000 2003-01-01 52064100000 2004-01-01 59625900000 2005-01-01 62343000000 2006-01-01 68641000000 2007-01-01 79041200000 2008-01-01 92507000000 2009-01-01 92897300000 2010-01-01 93217200000 2011-01-01 101370800000 2012-01-01 98265800000 2013-01-01 106825600000 2014-01-01 110080800000 2015-01-01 101186600000 2016-01-01 103606600000 2017-01-01 109823700000 2018-01-01 120997400000 2019-01-01 129032600000