Year	Dollars
1992-01-01	14439695
1997-01-01	9185562
2002-01-01	3435378
2003-01-01	4653795
2004-01-01	9285889
2005-01-01	7577248
2006-01-01	8742806
2007-01-01	13640332
2008-01-01	21375665
2009-01-01	13357723
2010-01-01	33370921
2011-01-01	54708638
2012-01-01	49290571
2013-01-01	61173774
2014-01-01	14579828
2015-01-01	24293632
2016-01-01	11085842