Year	Dollars
1992-01-01	8770948
1997-01-01	12596801
2002-01-01	34823264
2003-01-01	21099722
2004-01-01	25510809
2005-01-01	13996215
2006-01-01	20731818
2007-01-01	28836281
2008-01-01	23612514
2009-01-01	16713967
2010-01-01	18883835
2011-01-01	28248669
2012-01-01	27131495
2013-01-01	13032050
2014-01-01	37336634
2015-01-01	15817409
2016-01-01	21963029