Year	Dollars
1992-01-01	10166494
1997-01-01	25692900
2002-01-01	41042714
2003-01-01	11217863
2004-01-01	8280921
2005-01-01	14180994
2006-01-01	17662283
2007-01-01	19020724
2008-01-01	22617762
2009-01-01	41040282
2010-01-01	32881716
2011-01-01	35039951
2012-01-01	45012118
2013-01-01	53241169
2014-01-01	54478800
2015-01-01	32673473
2016-01-01	31494345