Year Current U.S. Dollars 1960-01-01 70.3490786064852 1961-01-01 71.4872777291414 1962-01-01 73.7817649496193 1963-01-01 78.9002836003344 1964-01-01 86.6031946364808 1965-01-01 51.6573646771225 1966-01-01 52.4767229561783 1967-01-01 55.1316867125382 1968-01-01 55.2434041878240 1969-01-01 56.0788814178728 1970-01-01 70.2431270893069 1971-01-01 72.1295529412513 1972-01-01 69.6391925469869 1973-01-01 85.0470001459123 1974-01-01 95.4139510508920 1975-01-01 114.6635856320800 1976-01-01 119.9073909207200 1977-01-01 143.2891278368900 1978-01-01 155.9176618428980 1979-01-01 194.9753860695200 1980-01-01 223.4072261814570 1981-01-01 229.4581866730440 1982-01-01 233.8176710365110 1983-01-01 243.4238066397330 1984-01-01 215.9441862753430 1985-01-01 244.5689375209680 1986-01-01 248.2101339268970 1987-01-01 226.8497157850790 1988-01-01 210.7500958902050 1989-01-01 210.9695202922360 1990-01-01 209.0516151611970 1991-01-01 210.6438771995300 1992-01-01 191.3109129814410 1993-01-01 162.6352249535310 1994-01-01 157.5430014566170 1995-01-01 167.7991716761700 1996-01-01 143.8532932872450 1997-01-01 159.1755281232320 1998-01-01 144.4746121911010 1999-01-01 128.6964397439290 2000-01-01 135.9984454657250 2001-01-01 133.7427689264910 2002-01-01 122.4335892963660 2003-01-01 112.8493702921950 2004-01-01 127.4296648032960 2005-01-01 150.5070433687660 2006-01-01 165.8794175614300 2007-01-01 170.7999004717530 2008-01-01 196.2472628313810 2009-01-01 204.9446501898400 2010-01-01 231.1943256492160 2011-01-01 260.4799073381530 2012-01-01 265.2856051312690 2013-01-01 282.7555252081880 2014-01-01 312.7489793870170 2015-01-01 300.6765569252630 2016-01-01 285.7274420647450 2017-01-01 320.0868701208940