Year	Dollars
1992-01-01	3917552
1997-01-01	6739111
2002-01-01	4184035
2003-01-01	3649740
2004-01-01	2995764
2005-01-01	18567335
2006-01-01	4882500
2007-01-01	20339049
2008-01-01	4603186
2009-01-01	18706836
2010-01-01	3869876
2011-01-01	4066961
2012-01-01	3494586
2013-01-01	3679109
2014-01-01	31729560
2015-01-01	3577682
2016-01-01	1779232