Year	Current U.S. Dollars
1989-01-01	2985467979.28524
1990-01-01	3520551724.13793
1991-01-01	3701667052.55846
1992-01-01	4183548189.07305
1993-01-01	4105706151.75145
1994-01-01	4087337959.93191
1995-01-01	4734020036.68689
1996-01-01	5115602836.87943
1997-01-01	5197332974.13793
1998-01-01	4051147227.53346
1999-01-01	4600000000.00000
2000-01-01	6001153306.26450
2001-01-01	5601090584.36122
2002-01-01	5843329107.56171
2003-01-01	6557333084.60567
2004-01-01	7872333215.00414
2005-01-01	9531402847.87311
2006-01-01	11470703002.07690
2007-01-01	12310094220.68870
2008-01-01	14447599068.58590
2009-01-01	10784466313.76320
2010-01-01	13606894022.73560
2011-01-01	18026870180.45950
2012-01-01	18590749039.69270
2013-01-01	17893222506.39390
2014-01-01	17082872928.17680
2015-01-01	13580987708.19700
2016-01-01	12235792369.50700
2017-01-01	12885364617.27860