Year Current U.S. Dollars 1960-01-01 40.5668807961198 1961-01-01 40.7196618532917 1962-01-01 40.9754946889206 1963-01-01 41.2507750633908 1964-01-01 41.1168065270719 1965-01-01 46.0262968560447 1966-01-01 37.5181158094747 1967-01-01 46.6779464865312 1968-01-01 48.8197273636811 1969-01-01 51.8322538840534 1970-01-01 58.5690783507225 1971-01-01 57.6352520983515 1972-01-01 61.8665658399681 1973-01-01 70.8735755066269 1974-01-01 72.9768373617611 1975-01-01 131.1886272967220 1976-01-01 141.7386123910620 1977-01-01 160.6524117326180 1978-01-01 188.5430883887380 1979-01-01 223.2950275154610 1980-01-01 244.0837715858750 1981-01-01 264.7326690849920 1982-01-01 256.3600095297940 1983-01-01 260.8016911064450 1984-01-01 269.8807082640610 1985-01-01 280.3261183472330 1986-01-01 303.4972859579700 1987-01-01 320.4682180374500 1988-01-01 340.7443647613590 1989-01-01 333.2888859217250 1990-01-01 352.4401341977400 1991-01-01 271.0814379456410 1992-01-01 302.7561645323160 1993-01-01 312.9451550612630 1994-01-01 125.4994917573400 1995-01-01 218.2047893001200 1996-01-01 226.0501885488870 1997-01-01 283.8776234970900 1998-01-01 281.7841627276010 1999-01-01 239.3780188091600 2000-01-01 216.1727953565750 2001-01-01 201.0569839188150 2002-01-01 196.5220296837090 2003-01-01 212.6872328115820 2004-01-01 236.8857125191320 2005-01-01 287.0762412020860 2006-01-01 342.3990981714830 2007-01-01 404.8507881084170 2008-01-01 500.6189986125730 2009-01-01 539.1084947613810 2010-01-01 563.4013453264490 2011-01-01 624.1228849071690 2012-01-01 679.8607504173640 2013-01-01 688.8223493473570 2014-01-01 706.5967097958420 2015-01-01 711.7739773468770 2016-01-01 711.1957913115470 2017-01-01 748.3932599965580