Year	Current U.S. Dollars
1990-01-01	3917.15984010204
1991-01-01	2878.71928306369
1992-01-01	3352.03416144651
1993-01-01	3931.74446274757
1994-01-01	4601.95231248673
1995-01-01	5788.15073679709
1996-01-01	6493.86334640108
1997-01-01	5996.83381043982
1998-01-01	6458.90450104404
1999-01-01	6307.69800377791
2000-01-01	6011.61522035701
2001-01-01	6609.20552986054
2002-01-01	8032.89661245767
2003-01-01	9773.11750251281
2004-01-01	11685.88724072340
2005-01-01	13346.17638988570
2006-01-01	15183.63605413750
2007-01-01	18373.64899769130
2008-01-01	22698.85395726050
2009-01-01	19741.59762798260
2010-01-01	19808.07109125180
2011-01-01	21717.45793922020
2012-01-01	19729.87051117630
2013-01-01	19916.01938737220
2014-01-01	19744.55860921590
2015-01-01	17715.61685230090
2016-01-01	18483.71647977160
2017-01-01	20368.13855760710