Year	Dollars
1992-01-01	538570012
1997-01-01	888291175
2002-01-01	862619464
2003-01-01	866839656
2004-01-01	1038695740
2005-01-01	1120490257
2006-01-01	1647119614
2007-01-01	2222087954
2008-01-01	1677416832
2009-01-01	1095251480
2010-01-01	1377532319
2011-01-01	1398556830
2012-01-01	1262020551
2013-01-01	1338825979
2014-01-01	1649511109
2015-01-01	1324434553
2016-01-01	1160434903