Year	Dollars
1992-01-01	4616135
1997-01-01	1766605
2002-01-01	7911124
2003-01-01	7436741
2004-01-01	6233377
2005-01-01	5310784
2006-01-01	5062381
2007-01-01	7239581
2008-01-01	3938544
2009-01-01	5066803
2010-01-01	4804872
2011-01-01	6155398
2012-01-01	10352086
2013-01-01	14311760
2014-01-01	20591909
2015-01-01	20638482
2016-01-01	41663680