Year Current U.S. Dollars 1960-01-01 537777811.111111 1961-01-01 548888895.555556 1962-01-01 546666677.777778 1963-01-01 751111191.111111 1964-01-01 800000044.444444 1965-01-01 1006666637.777780 1966-01-01 1399999966.666670 1967-01-01 1673333417.777780 1968-01-01 1373333366.666670 1969-01-01 1408888922.222220 1970-01-01 1748886595.555560 1971-01-01 1831108971.111110 1972-01-01 1595555475.555560 1973-01-01 1733333264.444440 1974-01-01 2155555497.777780 1975-01-01 2366666615.555560 1976-01-01 2555555566.666670 1977-01-01 2953333417.777780 1978-01-01 3300000108.888890 1979-01-01 3697940409.610980 1980-01-01 3641723321.995460 1981-01-01 3478787909.090910 2001-01-01 2461665937.893860 2002-01-01 4128820723.047130 2003-01-01 4583644246.480610 2004-01-01 5285465685.864230 2005-01-01 6275073571.546590 2006-01-01 7057598406.615530 2007-01-01 9843842455.483230 2008-01-01 10190529882.487800 2009-01-01 12486943505.738100 2010-01-01 15936800636.248700 2011-01-01 17930239399.814900 2012-01-01 20536542736.729700 2013-01-01 20264253973.785800 2014-01-01 20616104298.497500 2015-01-01 19215562179.011700 2016-01-01 19469022207.685200 2017-01-01 20815300220.042800