Year	Dollars
1992-01-01	147317343
1997-01-01	151985585
2002-01-01	135273452
2003-01-01	142523934
2004-01-01	170290430
2005-01-01	203405377
2006-01-01	191952457
2007-01-01	246523004
2008-01-01	281499501
2009-01-01	281981911
2010-01-01	347461385
2011-01-01	403805715
2012-01-01	428364494
2013-01-01	333215364
2014-01-01	307729139
2015-01-01	222706982
2016-01-01	227063334