Year	Dollars
1997-01-01	2368314
2002-01-01	305348
2003-01-01	170867
2005-01-01	498715
2006-01-01	452199
2007-01-01	1424793
2008-01-01	5056674
2009-01-01	2353565
2011-01-01	4467503
2012-01-01	4655142
2013-01-01	7566535
2015-01-01	8255737
2016-01-01	4905842