Year	Dollars
1992-01-01	29243762
1997-01-01	83327168
2002-01-01	73727329
2003-01-01	34594561
2004-01-01	39512992
2005-01-01	83458177
2006-01-01	73246377
2007-01-01	88049615
2008-01-01	143502891
2009-01-01	86072077
2010-01-01	127722054
2011-01-01	129112975
2012-01-01	157297130
2013-01-01	141064363
2014-01-01	194116380
2015-01-01	178261885
2016-01-01	158621666