Year Index 2010=1 1968-01-01 0.10240000000000000 1969-01-01 0.10540000000000000 1970-01-01 0.11680000000000000 1971-01-01 0.12410000000000000 1972-01-01 0.13300000000000000 1973-01-01 0.14210000000000000 1974-01-01 0.15539999999999998 1975-01-01 0.17530000000000000 1976-01-01 0.19200000000000000 1977-01-01 0.20640000000000000 1978-01-01 0.22330000000000000 1979-01-01 0.23460000000000000 1980-01-01 0.26690000000000000 1981-01-01 0.31090000000000000 1982-01-01 0.34620000000000000 1983-01-01 0.37479999999999997 1984-01-01 0.39980000000000000 1985-01-01 0.42300000000000000 1986-01-01 0.44730000000000000 1987-01-01 0.48670000000000000 1988-01-01 0.51960000000000010 1989-01-01 0.54080000000000000 1990-01-01 0.56850000000000000 1991-01-01 0.59340000000000000 1992-01-01 0.60600000000000000 1993-01-01 0.61630000000000010 1994-01-01 0.62550000000000000 1995-01-01 0.64440000000000000 1996-01-01 0.65800000000000000 1997-01-01 0.67990000000000000 1998-01-01 0.69000000000000010 1999-01-01 0.71070000000000000 2000-01-01 0.74400000000000010 2001-01-01 0.76610000000000000 2002-01-01 0.76660000000000000 2003-01-01 0.81430000000000010 2004-01-01 0.80530000000000000 2005-01-01 0.82140000000000000 2006-01-01 0.86870000000000000 2007-01-01 0.86840000000000010 2008-01-01 0.94530000000000000 2009-01-01 0.95570000000000000 2010-01-01 1.00000000000000000 2011-01-01 1.01800000000000000 2012-01-01 1.01000000000000000 2013-01-01 1.05700000000000000 2014-01-01 1.06840000000000000 2015-01-01 1.07030000000000000