Year Percent 1960-01-01 211.44299999999998 1961-01-01 150.55900000000000 1962-01-01 107.57200000000000 1963-01-01 110.83400000000000 1964-01-01 109.42700000000000 1965-01-01 115.69700000000000 1966-01-01 129.09000000000000 1967-01-01 144.12800000000000 1968-01-01 153.82900000000000 1969-01-01 164.46900000000002 1970-01-01 170.47500000000000 1971-01-01 166.81300000000000 1972-01-01 153.88700000000000 1973-01-01 141.11500000000000 1974-01-01 134.11500000000000 1975-01-01 125.07799999999999 1976-01-01 115.15100000000001 1977-01-01 107.83300000000000 1978-01-01 104.86000000000000 1979-01-01 109.98400000000000 1980-01-01 115.16799999999999 1981-01-01 111.86300000000000 1982-01-01 113.66600000000000 1983-01-01 111.53700000000000 1984-01-01 107.12500000000000 1985-01-01 108.10300000000000 1986-01-01 109.26000000000000 1987-01-01 104.72800000000000 1988-01-01 107.44100000000000 1989-01-01 106.11700000000000 1990-01-01 99.14140000000000 1991-01-01 100.54000000000000 1992-01-01 101.20900000000000 1993-01-01 103.86200000000001 1994-01-01 111.95900000000000 1995-01-01 116.78200000000001 1996-01-01 121.28800000000000 1997-01-01 131.10399999999998 1998-01-01 131.00000000000000 1999-01-01 122.57200000000000 2000-01-01 121.19600000000000 2001-01-01 122.31400000000000 2002-01-01 122.11800000000000 2003-01-01 103.79200000000000 2004-01-01 85.71700000000001 2005-01-01 88.23660000000000 2006-01-01 93.31600000000000 2007-01-01 98.65299999999999 2008-01-01 111.43400000000000 2009-01-01 116.25600000000000 2010-01-01 123.46900000000000 2011-01-01 141.78400000000000 2012-01-01 153.00900000000000 2013-01-01 156.23800000000000 2014-01-01 160.74500000000000 2015-01-01 169.30700000000002 2016-01-01 169.59900000000002