Year	Dollars
1992-01-01	20483253761
1997-01-01	32686684798
2002-01-01	31724307820
2003-01-01	33205412002
2004-01-01	37346255985
2005-01-01	41699796696
2006-01-01	48465850843
2007-01-01	57133595339
2008-01-01	63147169053
2009-01-01	48330630515
2010-01-01	58156452081
2011-01-01	71403244893
2012-01-01	66381043441
2013-01-01	71677433584
2014-01-01	74559727822
2015-01-01	68785750685
2016-01-01	62897767683