Year	Dollars
1992-01-01	6437327
1997-01-01	4423262
2002-01-01	2548554
2003-01-01	4165848
2004-01-01	4132555
2005-01-01	5118214
2006-01-01	5395128
2007-01-01	9712536
2008-01-01	9686171
2009-01-01	9686701
2010-01-01	13122501
2011-01-01	21804674
2012-01-01	31628671
2013-01-01	20078684
2014-01-01	22513607
2015-01-01	27973184
2016-01-01	26709186