Year	Dollars
1997-01-01	247527815
2002-01-01	130006885
2003-01-01	149545195
2004-01-01	131095742
2005-01-01	332185618
2006-01-01	516037397
2007-01-01	529359816
2008-01-01	211118067
2009-01-01	83823056
2010-01-01	259363228
2011-01-01	787859642
2012-01-01	293648063
2013-01-01	118776330
2014-01-01	611822489
2016-01-01	572845898