Year	Dollars
1992-01-01	7322305
1997-01-01	13218694
2002-01-01	14202260
2003-01-01	35430490
2004-01-01	44974720
2005-01-01	75936591
2006-01-01	77737940
2007-01-01	132952259
2008-01-01	158236333
2009-01-01	149979660
2010-01-01	98057503
2011-01-01	204333822
2012-01-01	217781107
2013-01-01	151060638
2014-01-01	128411598
2015-01-01	69310339
2016-01-01	63033374