Year	Dollars
1992-01-01	21633893
1997-01-01	40131424
2002-01-01	60082718
2003-01-01	53094122
2004-01-01	62797640
2005-01-01	58570963
2006-01-01	70234121
2007-01-01	92641545
2008-01-01	117260142
2009-01-01	107216116
2010-01-01	180202583
2011-01-01	173163628
2012-01-01	191742279
2013-01-01	212694101
2014-01-01	231341534
2015-01-01	236499492
2016-01-01	192647342