Year	2010 U.S. Dollars
1977-01-01	3314.94412346633
1978-01-01	3601.26605222090
1979-01-01	3682.79254773814
1980-01-01	3555.03188895322
1981-01-01	3725.78185116624
1982-01-01	3755.58571572910
1983-01-01	3890.14097331178
1984-01-01	4110.17462153581
1985-01-01	4380.62934067355
1986-01-01	4916.12878809890
1987-01-01	5025.61561253670
1988-01-01	5601.42780912580
1989-01-01	6004.20091218425
1990-01-01	6493.29774428952
1991-01-01	6438.97232556650
1992-01-01	6853.38874569076
1993-01-01	6816.40261923590
1994-01-01	6856.08907937344
1995-01-01	6886.77902924716
1996-01-01	6996.27874111612
1997-01-01	6863.16036317294
1998-01-01	7195.66033584812
1999-01-01	7296.61161612254
2000-01-01	7216.90518604920
2001-01-01	6910.88188324825
2002-01-01	6877.97400228846
2003-01-01	7121.56016144664
2004-01-01	7577.64683894278
2005-01-01	7482.70780678826
2006-01-01	7866.94925610701
2007-01-01	7855.14082377880
2008-01-01	8204.54189423704
2009-01-01	8213.88819207671
2010-01-01	8007.69648429285
2011-01-01	8000.14374983590
2012-01-01	7968.68160407752
2013-01-01	8200.49140567485
2014-01-01	8147.52355204928
2015-01-01	8270.70777286367
2016-01-01	8369.26495735340
2017-01-01	8554.58635432944