Year	Dollars
1992-01-01	16137506
1997-01-01	16755539
2002-01-01	18474808
2003-01-01	14250079
2004-01-01	19195775
2005-01-01	15889126
2006-01-01	12605991
2007-01-01	17862944
2008-01-01	15388259
2009-01-01	13440695
2010-01-01	15784226
2011-01-01	19895300
2012-01-01	49622981
2013-01-01	40621237
2014-01-01	69766315
2015-01-01	72741549
2016-01-01	79345461