Year Index 2010=1 1980-01-01 0.574973153053075 1981-01-01 0.642789459079212 1982-01-01 0.709198499888090 1983-01-01 0.769932490378044 1984-01-01 0.796618195191352 1985-01-01 0.856563577713729 1986-01-01 0.863331044437766 1987-01-01 0.885360492816357 1988-01-01 0.893196316745651 1989-01-01 0.887993872616313 1990-01-01 0.896444771850142 1991-01-01 0.903389771092115 1992-01-01 0.928056381127813 1993-01-01 0.940700625531607 1994-01-01 0.917475562553875 1995-01-01 0.906937467985114 1996-01-01 0.912637958156270 1997-01-01 0.875118314197936 1998-01-01 0.852607113736278 1999-01-01 0.847438887824602 2000-01-01 0.858020653316146 2001-01-01 0.866048659857660 2002-01-01 0.890468531973241 2003-01-01 0.917480201868817 2004-01-01 0.936250522296353 2005-01-01 0.951842239909698 2006-01-01 0.954800682442744 2007-01-01 0.948172855061463 2008-01-01 0.973769273594298 2009-01-01 1.021298707992770 2010-01-01 1.000000000000000