Year	U.S. Dollars
2000-01-01	10341100000
2001-01-01	10188000000
2002-01-01	11567300000
2003-01-01	14944900000
2004-01-01	22612300000
2005-01-01	30386400000
2006-01-01	41438300000
2007-01-01	51772900000
2008-01-01	76256600000
2009-01-01	48027000000
2010-01-01	65510500000
2011-01-01	89531600000
2012-01-01	91759300000
2013-01-01	90980300000
2014-01-01	86927600000
2015-01-01	52991900000
2016-01-01	43569400000
2017-01-01	55683300000
2018-01-01	65703800000
2019-01-01	65338300000