Year	U.S. Dollars
2000-01-01	82259500000
2001-01-01	72980500000
2002-01-01	77641200000
2003-01-01	98956900000
2004-01-01	131849300000
2005-01-01	192113400000
2006-01-01	225488000000
2007-01-01	249704600000
2008-01-01	322853300000
2009-01-01	202056500000
2010-01-01	261831200000
2011-01-01	376261400000
2012-01-01	399419500000
2013-01-01	387745700000
2014-01-01	354973200000
2015-01-01	218010400000
2016-01-01	200833100000
2017-01-01	233223200000
2018-01-01	267336100000
2019-01-01	257681300000