Year	Current U.S. Dollars
1991-01-01	3349.77040624162
1992-01-01	3734.56185574939
1993-01-01	3873.42353247561
1994-01-01	4172.76523174592
1995-01-01	4494.05303438956
1996-01-01	4525.14012115202
1997-01-01	4595.52450570355
1998-01-01	4750.41487455393
1999-01-01	4802.95875968079
2000-01-01	4633.31292266249
2001-01-01	5283.03445943396
2002-01-01	6665.96124226996
2003-01-01	8423.35098742884
2004-01-01	10296.33978948440
2005-01-01	11205.97134218410
2006-01-01	11447.81687015830
2007-01-01	13907.50338484740
2008-01-01	15739.73541158420
2009-01-01	13029.88337537200
2010-01-01	13092.23375676950
2011-01-01	14118.12262902770
2012-01-01	12888.30459088290
2013-01-01	13667.70278654960
2014-01-01	14201.44883201480
2015-01-01	12483.86594063490
2016-01-01	12820.08819630530
2017-01-01	14224.84645770270