Year	U.S. Dollars
2000-01-01	189514900000
2001-01-01	184137500000
2002-01-01	189605900000
2003-01-01	215807700000
2004-01-01	258742300000
2005-01-01	328205700000
2006-01-01	376397600000
2007-01-01	415687300000
2008-01-01	519796700000
2009-01-01	429097900000
2010-01-01	526811400000
2011-01-01	671238800000
2012-01-01	735974800000
2013-01-01	746647100000
2014-01-01	756350300000
2015-01-01	654269900000
2016-01-01	644934900000
2017-01-01	683826900000
2018-01-01	748003000000
2019-01-01	759219400000