Year	Dollars
1992-01-01	1059545
1997-01-01	7817468
2002-01-01	4813329
2003-01-01	5681318
2004-01-01	27996989
2005-01-01	3611113
2006-01-01	5949394
2007-01-01	10509735
2008-01-01	14606509
2009-01-01	13995159
2010-01-01	12858246
2011-01-01	20456612
2012-01-01	19322596
2013-01-01	15642776
2014-01-01	16978588
2015-01-01	20251560
2016-01-01	17998684