Year Index 2010=1 1970-01-01 0.272588743931564 1971-01-01 0.273169783822810 1972-01-01 0.279295300305758 1973-01-01 0.285739598463285 1974-01-01 0.326680281353961 1975-01-01 0.388791662501076 1976-01-01 0.411317888649530 1977-01-01 0.432476484565965 1978-01-01 0.457562707536380 1979-01-01 0.498123880946610 1980-01-01 0.572354869719497 1981-01-01 0.624676777289098 1982-01-01 0.717115005029614 1983-01-01 0.717710157749236 1984-01-01 0.688498586157294 1985-01-01 0.704464277808882 1986-01-01 0.732443290751382 1987-01-01 0.744529522329158 1988-01-01 0.768608115204415 1989-01-01 0.802117128858632 1990-01-01 0.837349798165142 1991-01-01 0.890329947354741 1992-01-01 0.893858443891932 1993-01-01 0.868203704068070 1994-01-01 0.845078612572743 1995-01-01 0.849331890579716 1996-01-01 0.869887144605168 1997-01-01 0.846681757447734 1998-01-01 0.847577619831611 1999-01-01 0.839160047792158 2000-01-01 0.808252561224104 2001-01-01 0.858320937628797 2002-01-01 0.873324807140768 2003-01-01 0.907770251473800 2004-01-01 0.932862124621753 2005-01-01 0.939522986227910 2006-01-01 0.963590537614761 2007-01-01 0.985707243643116 2008-01-01 1.016690291082790 2009-01-01 1.029400291079790 2010-01-01 1.000000000000000