Year	Dollars
1997-01-01	4689602
2002-01-01	19383911
2003-01-01	17466284
2004-01-01	15853154
2005-01-01	6756301
2006-01-01	9750796
2007-01-01	43727784
2008-01-01	53791550
2009-01-01	93345734
2010-01-01	76592677
2011-01-01	121263144
2012-01-01	130649190
2013-01-01	127186551
2014-01-01	125273323
2015-01-01	33778039
2016-01-01	50266020