Year	Dollars
1992-01-01	114129991
1997-01-01	141478756
2002-01-01	183873180
2003-01-01	181358617
2004-01-01	264056584
2005-01-01	321280591
2006-01-01	337577028
2007-01-01	336906761
2008-01-01	315004355
2009-01-01	284059443
2010-01-01	467482077
2011-01-01	478989064
2012-01-01	486370446
2013-01-01	402539573
2014-01-01	400439489
2015-01-01	414127797
2016-01-01	451864501