Year	Dollars
1992-01-01	13884277
1997-01-01	13421935
2002-01-01	9627026
2003-01-01	6288361
2004-01-01	10977103
2005-01-01	19531465
2006-01-01	30043134
2007-01-01	27073898
2008-01-01	40065063
2009-01-01	40482099
2010-01-01	36105193
2011-01-01	30948539
2012-01-01	43817689
2013-01-01	73762589
2014-01-01	47490208
2015-01-01	41561202
2016-01-01	36426190