Year	Dollars
1992-01-01	199816345
1997-01-01	418570778
2002-01-01	218419894
2003-01-01	59720623
2004-01-01	112789664
2005-01-01	271679159
2006-01-01	632161118
2007-01-01	691589527
2008-01-01	558956660
2009-01-01	427422295
2010-01-01	409213179
2011-01-01	493490929
2012-01-01	499482369
2013-01-01	285528956
2014-01-01	114678592
2015-01-01	74475179
2016-01-01	27032580