Year	Dollars
1992-01-01	1576119405
1997-01-01	3144947986
2002-01-01	3442868906
2003-01-01	3884423831
2004-01-01	4873511602
2005-01-01	4676016312
2006-01-01	4541904931
2007-01-01	4687057236
2008-01-01	5257901145
2009-01-01	5456533800
2010-01-01	6409613999
2011-01-01	7206394095
2012-01-01	7348955062
2013-01-01	7371286374
2014-01-01	7992578834
2015-01-01	8297046673