Year	Current U.S. Dollars
1988-01-01	1241.68428883939
1989-01-01	1015.46499678138
1990-01-01	1050.11785130457
1991-01-01	1617.27838141674
1992-01-01	1965.34130565769
1993-01-01	2597.60051730834
1994-01-01	3226.98782035389
1995-01-01	3863.26191997937
1996-01-01	4457.96016010293
1997-01-01	5093.29074535745
1998-01-01	5538.68028286956
1999-01-01	5509.34642947816
2000-01-01	5334.90332854286
2001-01-01	5253.12259942488
2002-01-01	5436.59522310290
2003-01-01	5425.66907030168
2004-01-01	5424.22356016217
2005-01-01	5339.44129078650
2006-01-01	5372.06589903658
2007-01-01	6014.27111539915
2008-01-01	7109.46641330459
2009-01-01	8480.94550388481
2010-01-01	8858.28397743868
2011-01-01	8734.18918518532
2012-01-01	8922.89675171623
2013-01-01	8721.25421524493
2014-01-01	8536.68249414692
2015-01-01	8452.44364087841
2016-01-01	8257.29439052664
2017-01-01	8523.74955005489