Year	U.S. Dollars
2000-01-01	19507600000
2001-01-01	19452200000
2002-01-01	20142900000
2003-01-01	21633900000
2004-01-01	24763900000
2005-01-01	31082200000
2006-01-01	37216100000
2007-01-01	42085700000
2008-01-01	60905900000
2009-01-01	48388800000
2010-01-01	58641600000
2011-01-01	67936800000
2012-01-01	76689500000
2013-01-01	78938600000
2014-01-01	81076700000
2015-01-01	68904800000
2016-01-01	66824200000
2017-01-01	74273700000
2018-01-01	82619600000
2019-01-01	85636300000