Year	Dollars
1992-01-01	2681990
1997-01-01	5083752
2002-01-01	7016241
2003-01-01	6338593
2004-01-01	8798353
2005-01-01	11601145
2006-01-01	14409816
2007-01-01	20175819
2008-01-01	20140579
2009-01-01	15638744
2010-01-01	18898178
2011-01-01	23943219
2012-01-01	28896435
2013-01-01	27907389
2014-01-01	34736361
2015-01-01	23607445
2016-01-01	23295080