Year	Dollars
1992-01-01	849546618
1997-01-01	731157023
2002-01-01	643320971
2003-01-01	398899490
2004-01-01	411002074
2005-01-01	256799082
2006-01-01	322910507
2007-01-01	223634859
2008-01-01	267621500
2009-01-01	608366386
2010-01-01	438764575
2011-01-01	386057463
2012-01-01	594897481
2013-01-01	402582661
2014-01-01	448616692
2015-01-01	384085075
2016-01-01	302098573