Year	Percent
1960-01-01	223.85400000000000
1961-01-01	221.57200000000000
1962-01-01	203.52900000000002
1963-01-01	178.53900000000002
1964-01-01	162.59000000000000
1965-01-01	154.93200000000002
1966-01-01	163.35200000000000
1967-01-01	181.90300000000000
1968-01-01	211.48000000000000
1969-01-01	235.52400000000000
1970-01-01	225.81300000000000
1971-01-01	206.54300000000000
1972-01-01	180.11800000000000
1973-01-01	157.66500000000000
1974-01-01	162.55400000000000
1975-01-01	171.28500000000000
1976-01-01	157.24900000000000
1977-01-01	156.74900000000000
1978-01-01	183.79600000000000
1979-01-01	228.68400000000003
1980-01-01	257.92300000000000
1981-01-01	251.00400000000002
1982-01-01	238.35000000000000
1983-01-01	140.03700000000000
1984-01-01	59.26460000000000
1985-01-01	44.00590000000000
1986-01-01	48.52950000000000
1987-01-01	41.66270000000000
1988-01-01	36.09330000000000
1989-01-01	44.23330000000000
1990-01-01	97.38190000000000
1991-01-01	109.47900000000000
1992-01-01	141.09900000000000
1993-01-01	177.16099999999997
1994-01-01	156.28799999999998
1995-01-01	131.74800000000000
1996-01-01	92.46680000000000
1997-01-01	67.98550000000000
1998-01-01	71.43850000000000
1999-01-01	77.45140000000000
2000-01-01	85.71950000000000
2001-01-01	70.78880000000000
2002-01-01	53.47410000000000
2003-01-01	57.18050000000000
2004-01-01	63.48670000000000
2005-01-01	73.44410000000000
2006-01-01	89.63950000000000
2007-01-01	104.65200000000000
2008-01-01	112.44300000000000
2009-01-01	102.64100000000000
2010-01-01	86.57710000000000
2011-01-01	82.79990000000000
2012-01-01	88.11050000000000
2013-01-01	91.77910000000000
2014-01-01	93.92880000000000
2015-01-01	97.34830000000000
2016-01-01	101.62000000000000