Year	U.S. Dollars
2000-01-01	679600000
2001-01-01	725000000
2002-01-01	720800000
2003-01-01	802800000
2004-01-01	1075000000
2005-01-01	1177700000
2006-01-01	2500300000
2007-01-01	4273000000
2008-01-01	6467000000
2009-01-01	5363700000
2010-01-01	6926800000
2011-01-01	10899100000
2012-01-01	11694800000
2013-01-01	14152000000
2014-01-01	13758300000
2015-01-01	5016700000
2016-01-01	3974400000
2017-01-01	5500000000
2018-01-01	6500000000
2019-01-01	7000000000