Year	Dollars
1997-01-01	17316882
2002-01-01	13540812
2003-01-01	13382909
2004-01-01	10759356
2005-01-01	12615077
2006-01-01	33298842
2007-01-01	18446562
2008-01-01	22181670
2009-01-01	11832646
2010-01-01	22815035
2011-01-01	27061081
2012-01-01	21806356
2013-01-01	25258284
2014-01-01	73882455
2015-01-01	46484030
2016-01-01	25077051