Year	Dollars
1992-01-01	493084653
1997-01-01	776181429
2002-01-01	651989005
2003-01-01	777687620
2004-01-01	1016098587
2005-01-01	1236081635
2006-01-01	1592002046
2007-01-01	2200971427
2008-01-01	2896871371
2009-01-01	2733558999
2010-01-01	4252828436
2011-01-01	4867767472
2012-01-01	5504144879
2013-01-01	6889595604
2014-01-01	7203171643
2015-01-01	5773103881