Year	U.S. Dollars
2000-01-01	849900000
2001-01-01	734800000
2002-01-01	768100000
2003-01-01	994700000
2004-01-01	1219800000
2005-01-01	1254400000
2006-01-01	1646000000
2007-01-01	1705600000
2008-01-01	1756300000
2009-01-01	1218200000
2010-01-01	842800000
2011-01-01	1072800000
2012-01-01	1311900000
2013-01-01	936700000
2014-01-01	836300000
2015-01-01	824400000
2016-01-01	923000000
2017-01-01	1033200000
2018-01-01	973300000
2019-01-01	998800000