Year	Dollars
1992-01-01	4636363006
1997-01-01	9148844677
2002-01-01	7600977074
2003-01-01	8471313806
2004-01-01	8993373394
2005-01-01	9604745063
2006-01-01	10574440145
2007-01-01	12823369854
2008-01-01	13994200203
2009-01-01	11142153755
2010-01-01	12420091406
2011-01-01	13315282035
2012-01-01	13364510325
2013-01-01	13785755104
2014-01-01	13798876147
2015-01-01	13167321141
2016-01-01	12203389177