Year	2010 U.S. Dollars
1970-01-01	3742.80828399907
1971-01-01	3834.02315146026
1972-01-01	4061.22012395459
1973-01-01	4233.10294046748
1974-01-01	4661.10072595146
1975-01-01	5532.03936424782
1976-01-01	6440.57462341685
1977-01-01	7197.15432640375
1978-01-01	7917.59386211240
1979-01-01	8659.98647944964
1980-01-01	9173.78780569755
1981-01-01	9408.16482368309
1982-01-01	9418.87477164980
1983-01-01	9230.17562880887
1984-01-01	9315.21348262343
1985-01-01	9389.62825395008
1986-01-01	9592.80062622978
1987-01-01	9918.57833273914
1988-01-01	10665.22480471610
1989-01-01	11425.79521200370
1990-01-01	12026.40330428370
1991-01-01	12439.03237669710
1992-01-01	12888.88382876860
1993-01-01	13332.57543745300
1994-01-01	13954.88598887800
1995-01-01	14736.87762379220
1996-01-01	15193.46201137250
1997-01-01	15871.60846041880
1998-01-01	16577.03278799460
1999-01-01	17256.85159242800
2000-01-01	18306.66505928200
2001-01-01	18280.21352572690
2002-01-01	18685.65568857910
2003-01-01	19035.36114997870
2004-01-01	18991.78280347990
2005-01-01	19585.12426602930
2006-01-01	19870.75220434110
2007-01-01	20590.95218646080
2008-01-01	21142.02081139570
2009-01-01	20466.56360225390
2010-01-01	21087.79469310360
2011-01-01	21276.41024945910
2012-01-01	21657.96956960990
2013-01-01	22340.75372284610
2014-01-01	23676.03236282190
2015-01-01	25342.02229028370
2016-01-01	26064.17137622440
2017-01-01	27145.81053794430