Year	2010 U.S. Dollars
1960-01-01	17735.5388358685
1961-01-01	18675.9437144820
1962-01-01	19610.0348530087
1963-01-01	20609.9708732118
1964-01-01	21690.1160747607
1965-01-01	22864.4639382534
1966-01-01	23863.2356108452
1967-01-01	25083.7501992555
1968-01-01	26164.4716950013
1969-01-01	27538.6356325644
1970-01-01	25199.4213840011
1971-01-01	24945.1353483925
1972-01-01	23534.5191226923
1973-01-01	24806.5160926048
1974-01-01	20247.5181378747
1975-01-01	16904.7578845885
1976-01-01	17410.7457005905
1977-01-01	18598.8714979792
1978-01-01	20772.2050001057
1979-01-01	25627.2138071153
1980-01-01	26692.0725564158
1981-01-01	23696.7255876803
1982-01-01	24724.1116685289
1983-01-01	25054.7450455743
1984-01-01	28004.8670088827
1985-01-01	28772.8465100067
1986-01-01	28745.5725120598
1987-01-01	29085.1096446520
1988-01-01	29253.7690435889
1989-01-01	30692.4138853615
1990-01-01	29673.8110325064
1991-01-01	27912.4220541234
1992-01-01	26338.4497688498
1993-01-01	25929.3525844085
1994-01-01	26287.3099391422
1995-01-01	27021.6239780199
1996-01-01	27801.6624601052
1997-01-01	28060.5675075020
1998-01-01	29071.0119441170
1999-01-01	30775.2565242455
2000-01-01	31587.5910287405
2001-01-01	31856.0858381733
2002-01-01	32080.3534626775
2003-01-01	31013.6392107287
2004-01-01	30629.7291711957
2005-01-01	31023.0472151871
2006-01-01	31180.6151182587
2007-01-01	31031.2310041983
2008-01-01	29758.2497985530
2009-01-01	28019.1486383366
2010-01-01	27979.1149343739
2011-01-01	27710.1019614772
2012-01-01	28145.3586633412
2013-01-01	27643.3952097958
2014-01-01	27246.4848610022
2015-01-01	27198.9076041403
2016-01-01	26439.0536351685
2017-01-01	26538.9456334750