Year Index 2010=1 1970-01-01 0.277947948552073 1971-01-01 0.305659011999276 1972-01-01 0.319924196123765 1973-01-01 0.349523465119144 1974-01-01 0.389558816425586 1975-01-01 0.415057196696497 1976-01-01 0.438601529552785 1977-01-01 0.449100388854259 1978-01-01 0.459836165412989 1979-01-01 0.475883816252617 1980-01-01 0.502375584664073 1981-01-01 0.524233598867071 1982-01-01 0.540576835703523 1983-01-01 0.546274776855809 1984-01-01 0.559042060550951 1985-01-01 0.565678344105970 1986-01-01 0.572123416717153 1987-01-01 0.582374083067224 1988-01-01 0.590158991282360 1989-01-01 0.599557030570197 1990-01-01 0.615996706935444 1991-01-01 0.643424595856876 1992-01-01 0.696163229308924 1993-01-01 0.721929515571133 1994-01-01 0.747135371677700 1995-01-01 0.745721502916850 1996-01-01 0.744157826250999 1997-01-01 0.761566768862967 1998-01-01 0.784571604460394 1999-01-01 0.821492531668148 2000-01-01 0.865559355573518 2001-01-01 0.875571777184430 2002-01-01 0.884582317336969 2003-01-01 0.905589315247962 2004-01-01 0.939751196572890 2005-01-01 0.944832355749274 2006-01-01 0.932140263794450 2007-01-01 0.942849219408317 2008-01-01 0.964671479995814 2009-01-01 0.988439118368541 2010-01-01 1.000000000000000