Year Index 2010=1 1970-01-01 0.387940448137031 1971-01-01 0.424652459679732 1972-01-01 0.443055536632464 1973-01-01 0.470497253490161 1974-01-01 0.509069647840288 1975-01-01 0.543029380976498 1976-01-01 0.550761247838626 1977-01-01 0.578079148505958 1978-01-01 0.605898083284680 1979-01-01 0.626911748143885 1980-01-01 0.681314258436326 1981-01-01 0.717009007413084 1982-01-01 0.751653603770458 1983-01-01 0.753853271429628 1984-01-01 0.760173405806925 1985-01-01 0.767983615731672 1986-01-01 0.804974326850789 1987-01-01 0.844317783936612 1988-01-01 0.844927355791788 1989-01-01 0.842028343070083 1990-01-01 0.875570881328686 1991-01-01 0.903907561278339 1992-01-01 0.971912262423921 1993-01-01 1.014931448959220 1994-01-01 0.990526531615230 1995-01-01 1.018155906679630 1996-01-01 1.028655053738790 1997-01-01 0.995433396888670 1998-01-01 1.001978101031540 1999-01-01 0.998088222090690 2000-01-01 0.983585204029356 2001-01-01 0.992618967853770 2002-01-01 0.998187490555443 2003-01-01 0.989376417559702 2004-01-01 0.949305912412842 2005-01-01 0.927863270511866 2006-01-01 0.902378019385757 2007-01-01 0.884807524927775 2008-01-01 0.948272107846161 2009-01-01 1.083328066452060 2010-01-01 1.000000000000000