Year	Dollars
1992-01-01	6532570
1997-01-01	14772306
2002-01-01	13621446
2003-01-01	19126747
2004-01-01	26584968
2005-01-01	31903376
2006-01-01	49601263
2007-01-01	61715593
2008-01-01	72111051
2009-01-01	57396481
2010-01-01	49692084
2011-01-01	50462482
2012-01-01	58191832
2013-01-01	66219256
2014-01-01	75177150
2016-01-01	71339389