Year	Dollars
1992-01-01	1469904
1997-01-01	4593686
2002-01-01	4693409
2003-01-01	4851291
2004-01-01	8578495
2005-01-01	2740704
2006-01-01	3894343
2007-01-01	5533575
2008-01-01	7178525
2009-01-01	2840621
2010-01-01	8708903
2011-01-01	6204316
2012-01-01	7173633
2013-01-01	8184269
2014-01-01	18692789
2016-01-01	40820032