Year U.S. Dollars 2000-01-01 261100000 2001-01-01 285200000 2002-01-01 289700000 2003-01-01 359200000 2004-01-01 543800000 2005-01-01 608500000 2006-01-01 814200000 2007-01-01 1193700000 2008-01-01 1222400000 2009-01-01 1583900000 2010-01-01 1716000000 2011-01-01 1831000000 2012-01-01 2061200000 2013-01-01 2226200000 2014-01-01 1856000000 2015-01-01 1468000000 2016-01-01 1776500000 2017-01-01 1967900000 2018-01-01 1928500000 2019-01-01 2139100000