Year	Dollars
1992-01-01	160276664
1997-01-01	236158962
2002-01-01	325278500
2003-01-01	334384100
2004-01-01	314158726
2005-01-01	342356198
2006-01-01	385547232
2007-01-01	431097718
2008-01-01	475637692
2009-01-01	420955453
2010-01-01	439031075
2011-01-01	444876309
2012-01-01	498169672
2013-01-01	479417875
2014-01-01	503323898
2015-01-01	527011675
2016-01-01	537439469