Year Index 2010=1 1980-01-01 0.235561465445836 1981-01-01 0.263788606135047 1982-01-01 0.290382327399495 1983-01-01 0.318472123583746 1984-01-01 0.346856226199875 1985-01-01 0.382816307629681 1986-01-01 0.395845810818674 1987-01-01 0.389779334568064 1988-01-01 0.453619490214181 1989-01-01 0.506468484964732 1990-01-01 0.569707445478184 1991-01-01 0.622878480559553 1992-01-01 0.661530438418218 1993-01-01 0.652594528140859 1994-01-01 0.638826011652668 1995-01-01 0.639496984977054 1996-01-01 0.664665313094820 1997-01-01 0.696924361391744 1998-01-01 0.732796221290364 1999-01-01 0.759620351118700 2000-01-01 0.796828440354572 2001-01-01 0.830627045485624 2002-01-01 0.853010097503159 2003-01-01 0.879844936633939 2004-01-01 0.901473098598040 2005-01-01 0.908556301574270 2006-01-01 0.906947330101372 2007-01-01 0.937014496333190 2008-01-01 0.908009464248296 2009-01-01 0.972718857570608 2010-01-01 1.000000000000000