Year	Dollars
1992-01-01	26989383812
1997-01-01	30942173624
2002-01-01	33398310094
2003-01-01	32909574381
2004-01-01	31812394237
2005-01-01	36366814320
2006-01-01	51353884455
2007-01-01	63361221396
2008-01-01	63228417515
2009-01-01	48841191701
2010-01-01	50634906595
2011-01-01	60993511828
2012-01-01	71814805727
2013-01-01	77250868995
2014-01-01	84494205257
2015-01-01	79638751380
2016-01-01	73410844520