Year	2010 U.S. Dollars
1970-01-01	11454.7770744073
1971-01-01	11790.5999359260
1972-01-01	12252.7116919372
1973-01-01	12884.9810987043
1974-01-01	13085.5949605528
1975-01-01	12928.3126144312
1976-01-01	13448.2795057526
1977-01-01	13739.4675570721
1978-01-01	14084.7344115604
1979-01-01	14513.3276875269
1980-01-01	14622.3157738883
1981-01-01	14600.0018468208
1982-01-01	14651.3640013248
1983-01-01	14848.7032051693
1984-01-01	15154.9195663094
1985-01-01	15481.5709373173
1986-01-01	15813.1293973086
1987-01-01	16194.2048610816
1988-01-01	16768.9350435311
1989-01-01	17259.0941094112
1990-01-01	17568.0390242949
1991-01-01	17576.0100442053
1992-01-01	17398.2253884019
1993-01-01	17189.5077210838
1994-01-01	17334.7755967941
1995-01-01	17675.1249315720
1996-01-01	17960.9953132151
1997-01-01	18463.8205086765
1998-01-01	18896.8192592685
1999-01-01	19420.0596485235
2000-01-01	20233.5395146226
2001-01-01	20647.5211979008
2002-01-01	20969.5204724221
2003-01-01	21306.3039854584
2004-01-01	21933.2509847107
2005-01-01	22470.3586857403
2006-01-01	23283.0106321418
2007-01-01	24059.1276324510
2008-01-01	24204.7059131052
2009-01-01	23028.5534466033
2010-01-01	23531.2014684677
2011-01-01	24040.7450409419
2012-01-01	24014.3561340106
2013-01-01	24115.3879469871
2014-01-01	24442.2763570186
2015-01-01	24805.1433737490
2016-01-01	25139.2526508652
2017-01-01	25682.8791323003