Year	2010 U.S. Dollars
1980-01-01	2333.59793102826
1981-01-01	2154.99743566209
1982-01-01	2079.06121325516
1983-01-01	2090.16552445921
1984-01-01	2141.03709084387
1985-01-01	2146.68484997307
1986-01-01	2145.83321650625
1987-01-01	2174.26654684678
1988-01-01	2248.26345202992
1989-01-01	2189.62448746567
1990-01-01	2054.29484729375
1991-01-01	2011.52777624208
1992-01-01	1833.49114398725
1993-01-01	1348.48435776496
1994-01-01	1323.34466977685
1995-01-01	1476.23116887027
1996-01-01	1628.99484387189
1997-01-01	1700.39185489990
1998-01-01	1732.47196663770
1999-01-01	1720.82535943688
2000-01-01	1720.41165371853
2001-01-01	1735.52192801493
2002-01-01	1906.52920315211
2003-01-01	1924.28658593245
2004-01-01	2046.82617813531
2005-01-01	2387.82541448660
2006-01-01	2741.71228334124
2007-01-01	3259.23232177160
2008-01-01	3579.70277416979
2009-01-01	3537.61988847575
2010-01-01	3531.41687831962
2011-01-01	3539.54307769840
2012-01-01	3592.62377074887
2013-01-01	3705.25535150932
2014-01-01	3746.66048817404
2015-01-01	3729.00354086070
2016-01-01	3576.18689373314
2017-01-01	3484.59951491702