Year	U.S. Dollars
2000-01-01	859200000
2001-01-01	876900000
2002-01-01	1011100000
2003-01-01	1289400000
2004-01-01	1646900000
2005-01-01	2187500000
2006-01-01	2551600000
2007-01-01	3182400000
2008-01-01	3688400000
2009-01-01	3207200000
2010-01-01	4061000000
2011-01-01	5262600000
2012-01-01	6046000000
2013-01-01	7209800000
2014-01-01	7092100000
2015-01-01	6232600000
2016-01-01	6281800000
2017-01-01	7678600000
2018-01-01	8828500000
2019-01-01	9439800000