Year Current U.S. Dollars 1982-01-01 4499.88707067295 1983-01-01 4296.93277135415 1984-01-01 4751.15776392207 1985-01-01 4756.40936486794 1986-01-01 5132.27654292765 1987-01-01 6297.12747533448 1988-01-01 7071.97349539123 1989-01-01 8060.21822756349 1990-01-01 9364.90931361292 1991-01-01 10558.21783565100 1992-01-01 13460.88413285120 1993-01-01 15189.98072152120 1994-01-01 16578.06183749880 1995-01-01 18139.19622957260 1996-01-01 18097.40061183920 1997-01-01 17957.94637967620 1998-01-01 16451.33863773690 1999-01-01 15505.27874518670 2000-01-01 15702.85552757520 2001-01-01 15547.87352754840 2002-01-01 16312.63771586530 2003-01-01 17809.59815476440 2004-01-01 22453.19234563720 2005-01-01 25058.53593429370 2006-01-01 29979.85447414130 2007-01-01 36402.56050834730 2008-01-01 40667.88423331950 2009-01-01 40881.38064238310 2010-01-01 52374.79444572280 2011-01-01 66813.34974099860 2012-01-01 76496.36618501940 2013-01-01 89524.84436071460 2014-01-01 94004.38982884910 2015-01-01 75484.28658094250 2016-01-01 74017.18471057990 2017-01-01 80892.82132916870