Year	2010 U.S. Dollars
1975-01-01	7618.11875417097
1976-01-01	9236.57835798172
1977-01-01	10746.57195277910
1978-01-01	11539.49138950640
1979-01-01	12584.31728230100
1980-01-01	13164.53486777750
1981-01-01	13273.64598019400
1982-01-01	13907.39772853070
1983-01-01	14563.13774325710
1984-01-01	15634.65777849510
1985-01-01	16199.88765229630
1986-01-01	16608.35265468300
1987-01-01	17589.45345117930
1988-01-01	18908.80065051790
1989-01-01	20122.65311808190
1990-01-01	21156.95134486250
1991-01-01	20768.77571211230
1992-01-01	22124.52710325570
1993-01-01	21747.82875858540
1994-01-01	22559.50145968530
1995-01-01	24030.23630343540
1996-01-01	23965.52556842890
1997-01-01	24234.41822121450
1998-01-01	25192.43325656880
1999-01-01	26114.99868688620
2000-01-01	27317.80369218890
2001-01-01	27998.01692096870
2002-01-01	28619.82646129250
2003-01-01	28974.13481881930
2004-01-01	29895.75293542190
2005-01-01	30565.78180038260
2006-01-01	31415.82316203550
2007-01-01	32236.59054849940
2008-01-01	32651.90559159730
2009-01-01	31223.62177993430
2010-01-01	30818.46395742350
2011-01-01	30138.59351127010
2012-01-01	28775.07467496980
2013-01-01	27130.56835880630
2014-01-01	27045.76792801680
2015-01-01	27738.50325014100
2016-01-01	28448.82235663930
2017-01-01	29432.66573252050