Year	Dollars
1992-01-01	65446394
1997-01-01	258182232
2002-01-01	70728205
2003-01-01	84716062
2004-01-01	185652849
2005-01-01	182323593
2006-01-01	156035295
2007-01-01	175966796
2008-01-01	204076765
2009-01-01	206828193
2010-01-01	240798493
2011-01-01	314937792
2012-01-01	294148840
2013-01-01	306168593
2014-01-01	319772063
2015-01-01	275874870
2016-01-01	251581889