Year	U.S. Dollars
2004-01-01	22359700000
2005-01-01	22448000000
2006-01-01	29602100000
2007-01-01	39545200000
2008-01-01	48541600000
2009-01-01	57136200000
2010-01-01	55051300000
2011-01-01	59864900000
2012-01-01	81937600000
2013-01-01	84549600000
2014-01-01	86679600000
2015-01-01	73619200000
2016-01-01	69915700000
2017-01-01	71933400000
2018-01-01	85606000000
2019-01-01	88135000000