Year Current U.S. Dollars 1960-01-01 158.2366362320180 1961-01-01 93.8162086410158 1962-01-01 106.1339990090070 1963-01-01 146.2945903150990 1964-01-01 123.5884554643450 1965-01-01 108.7038232103880 1966-01-01 133.4498079892010 1967-01-01 161.1157648402240 1968-01-01 198.3656582618650 1969-01-01 243.3344021469130 1970-01-01 279.1251974545490 1971-01-01 300.7648370982900 1972-01-01 323.5961524786030 1973-01-01 405.8829265551880 1974-01-01 561.5671868438790 1975-01-01 615.2014185115440 1976-01-01 830.6991850954420 1977-01-01 1050.8980028210100 1978-01-01 1398.4787556098600 1979-01-01 1773.5268464399200 1980-01-01 1704.4697392984500 1981-01-01 1870.3387342264600 1982-01-01 1977.6416355184200 1983-01-01 2180.4948442372100 1984-01-01 2390.6731517380300 1985-01-01 2457.3279970138500 1986-01-01 2803.3687636278200 1987-01-01 3510.9900197743400 1988-01-01 4686.1373251041200 1989-01-01 5736.9038072645000 1990-01-01 6516.3057593895700 1991-01-01 7523.4770016184300 1992-01-01 8001.5409918624900 1993-01-01 8740.9456025724000 1994-01-01 10205.8074659925000 1995-01-01 12332.9793517745000 1996-01-01 13137.9080701614000 1997-01-01 12131.8747042592000 1998-01-01 8085.3235283832800 1999-01-01 10409.3268882433000 2000-01-01 11947.5791282061000 2001-01-01 11252.9075540783000 2002-01-01 12782.5255346669000 2003-01-01 14209.3885192557000 2004-01-01 15907.6658340352000 2005-01-01 18639.5222053842000 2006-01-01 20888.3801505326000 2007-01-01 23060.7078836716000 2008-01-01 20430.6394600807000 2009-01-01 18291.9195978633000 2010-01-01 22086.9529193201000 2011-01-01 24079.7885238860000 2012-01-01 24358.7821758226000 2013-01-01 25890.0186698906000 2014-01-01 27811.3663837700000 2015-01-01 27105.0762262640000 2016-01-01 27608.2474287116000 2017-01-01 29742.8388613471000