Year Percent Change at Annual Rate 1960-01-01 2.82597464778689 1961-01-01 2.84779983495564 1962-01-01 2.86710045326273 1963-01-01 2.88436984815284 1964-01-01 2.89947867907441 1965-01-01 2.91145224495792 1966-01-01 2.92004345528064 1967-01-01 2.92357262325373 1968-01-01 2.91867296123483 1969-01-01 2.90524459691333 1970-01-01 2.88487487783534 1971-01-01 2.86202182151782 1972-01-01 2.83790052167639 1973-01-01 2.80994241134157 1974-01-01 2.77852781412494 1975-01-01 2.74484852300113 1976-01-01 2.71084357462089 1977-01-01 2.67763576035029 1978-01-01 2.64597862219101 1979-01-01 2.61597288964009 1980-01-01 2.58812759371979 1981-01-01 2.55897154705576 1982-01-01 2.53083373097599 1983-01-01 2.50935080237750 1984-01-01 2.49626787736142 1985-01-01 2.48732865268661 1986-01-01 2.47764652250489 1987-01-01 2.46295209505434 1988-01-01 2.44301787258773 1989-01-01 2.41637156409814 1990-01-01 2.38395465940111 1991-01-01 2.34933237082450 1992-01-01 2.31201270040352 1993-01-01 2.26759944938897 1994-01-01 2.21501319473328 1995-01-01 2.15675923167489 1996-01-01 2.10088464461432 1997-01-01 2.04606571343747 1998-01-01 1.98348658713595 1999-01-01 1.91195868790408 2000-01-01 1.83728637652126 2001-01-01 1.75944189609112 2002-01-01 1.69189428217333 2003-01-01 1.65047216307104 2004-01-01 1.64221731361543 2005-01-01 1.65602605267768 2006-01-01 1.67674870906347 2007-01-01 1.68941345225147 2008-01-01 1.68997756232997 2009-01-01 1.67280995561794 2010-01-01 1.64329146840027 2011-01-01 1.61178195206002 2012-01-01 1.58391933577492 2013-01-01 1.55647646823069 2014-01-01 1.53063409440029 2015-01-01 1.50564448525114 2016-01-01 1.47991740816496 2017-01-01 1.45286128725700