Year	Dollars
1992-01-01	11695746
1997-01-01	9489560
2002-01-01	7505993
2003-01-01	5651915
2004-01-01	8581643
2005-01-01	40314607
2006-01-01	13443244
2007-01-01	19037169
2008-01-01	27613750
2009-01-01	4895262
2010-01-01	9480811
2011-01-01	21876140
2012-01-01	14533511
2013-01-01	3641095
2014-01-01	3262783
2015-01-01	18530810
2016-01-01	13071761