Year	Dollars
1992-01-01	8121758
1997-01-01	13690114
2002-01-01	9010280
2003-01-01	9280215
2004-01-01	10418041
2005-01-01	16513165
2006-01-01	15641756
2007-01-01	21597600
2008-01-01	20681187
2009-01-01	20419135
2010-01-01	18809040
2011-01-01	27412307
2012-01-01	47265970
2013-01-01	15232013
2014-01-01	16602048
2015-01-01	19637179
2016-01-01	17363031