Year	Dollars
1992-01-01	19978203
1997-01-01	107866913
2003-01-01	317935834
2004-01-01	429686839
2005-01-01	505686921
2006-01-01	438382775
2007-01-01	482164760
2008-01-01	455993757
2009-01-01	300780777
2010-01-01	602354176
2011-01-01	542712174
2012-01-01	459163082
2013-01-01	447189383
2014-01-01	500540424
2015-01-01	531086571
2016-01-01	488740790