Year	Dollars
1992-01-01	5422506
1997-01-01	16429326
2002-01-01	4342744
2003-01-01	7661392
2004-01-01	11515251
2005-01-01	23760369
2006-01-01	29224864
2007-01-01	28083592
2008-01-01	31947714
2009-01-01	29715209
2010-01-01	33215329
2011-01-01	47519982
2012-01-01	51675416
2013-01-01	45814123
2014-01-01	44649819
2015-01-01	35307427
2016-01-01	34845825