Year	Current U.S. Dollars
1975-01-01	26556.0800299110
1976-01-01	29698.1692220993
1977-01-01	33245.8360986374
1978-01-01	27897.3270935772
1979-01-01	32798.4782338538
1980-01-01	41825.9954575740
1981-01-01	44012.3330672790
1982-01-01	39193.7409726279
1983-01-01	34159.0373526707
1984-01-01	31709.2543340905
1985-01-01	29189.1677892304
1986-01-01	23056.1045271808
1987-01-01	23312.9295261613
1988-01-01	21907.5979773605
1989-01-01	23612.7451969684
1990-01-01	27256.2909428352
1991-01-01	26168.2666231036
1992-01-01	25993.5580077670
1993-01-01	25199.3495771446
1994-01-01	25467.1922190635
1995-01-01	26847.0800531950
1996-01-01	28615.5821410126
1997-01-01	29199.5246108590
1998-01-01	26663.3087045186
1999-01-01	28260.0050167828
2000-01-01	33071.2686869422
2001-01-01	31061.5293454235
2002-01-01	31311.3593562152
2003-01-01	33230.5231807291
2004-01-01	36161.1706068291
2005-01-01	39439.8019679284
2006-01-01	42372.2216623658
2007-01-01	42672.6132294857
2008-01-01	45758.9055356627
2009-01-01	33072.5751663719
2010-01-01	35037.8926731322
2011-01-01	40434.3663503001
2012-01-01	42086.6899532330
2013-01-01	43315.1414921653
2014-01-01	44443.0615141941
2015-01-01	39122.0497054272
2016-01-01	38517.8003858029
2017-01-01	40698.8493360368