Year Percent Change at Annual Rate 1960-01-01 2.00857163053092 1961-01-01 2.03176172332899 1962-01-01 2.06150403560977 1963-01-01 2.10759361760902 1964-01-01 2.17488378370401 1965-01-01 2.25517669665349 1966-01-01 2.33819790336113 1967-01-01 2.41129348634996 1968-01-01 2.46899395146609 1969-01-01 2.50428902784262 1970-01-01 2.52562735098550 1971-01-01 2.54073360438895 1972-01-01 2.55980730924838 1973-01-01 2.58776450203758 1974-01-01 2.62724167157745 1975-01-01 2.67296433814600 1976-01-01 2.71400662140644 1977-01-01 2.74557895392849 1978-01-01 2.76994960711055 1979-01-01 2.78719555459188 1980-01-01 2.79598865435431 1981-01-01 2.80480308729877 1982-01-01 2.80652764567601 1983-01-01 2.78765887784149 1984-01-01 2.74540794682399 1985-01-01 2.68896460394048 1986-01-01 2.63017705446197 1987-01-01 2.58072986524668 1988-01-01 2.54450667513635 1989-01-01 2.52650476805984 1990-01-01 2.52175866820289 1991-01-01 2.51723843756327 1992-01-01 2.51199591991313 1993-01-01 2.51788451332948 1994-01-01 2.53547550024151 1995-01-01 2.55930181607426 1996-01-01 2.58489150575335 1997-01-01 2.60343844643571 1998-01-01 2.60912468511247 1999-01-01 2.59864382934872 2000-01-01 2.57665535081221 2001-01-01 2.55019545450873 2002-01-01 2.52488956158913 2003-01-01 2.50004598295227 2004-01-01 2.47778062787766 2005-01-01 2.45586605199653 2006-01-01 2.43364738340083 2007-01-01 2.40731834245691 2008-01-01 2.37452387770976 2009-01-01 2.33376839457432 2010-01-01 2.28802798506389 2011-01-01 2.24120700795836 2012-01-01 2.19717653315635 2013-01-01 2.15706213154454 2014-01-01 2.12300259824567 2015-01-01 2.09300931009046 2016-01-01 2.06402702332897 2017-01-01 2.03446590573128