Year	Percent
1960-01-01	91.55990000000000
1961-01-01	128.03300000000000
1962-01-01	142.65800000000000
1963-01-01	142.40800000000000
1964-01-01	153.58700000000002
1965-01-01	137.94600000000000
1966-01-01	110.00399999999999
1967-01-01	107.56700000000001
1968-01-01	117.72000000000000
1969-01-01	118.48000000000000
1970-01-01	117.79299999999999
1971-01-01	123.19800000000000
1972-01-01	120.63700000000000
1973-01-01	113.54400000000000
1974-01-01	124.21700000000001
1975-01-01	134.51800000000000
1976-01-01	127.73500000000000
1977-01-01	116.67100000000000
1978-01-01	117.65799999999999
1979-01-01	130.45700000000000
1980-01-01	142.56200000000000
1981-01-01	147.00700000000000
1982-01-01	144.78300000000000
1983-01-01	145.50799999999998
1984-01-01	151.25900000000000
1985-01-01	156.78000000000000
1986-01-01	154.84799999999998
1987-01-01	148.69000000000000
1988-01-01	139.67200000000000
1989-01-01	137.97899999999998
1990-01-01	146.78900000000000
1991-01-01	150.95400000000000
1992-01-01	147.85299999999998
1993-01-01	144.99000000000000
1994-01-01	144.35700000000000
1995-01-01	144.65700000000000
1996-01-01	146.35200000000000
1997-01-01	152.29900000000000
1998-01-01	141.92700000000002
1999-01-01	126.71000000000000
2000-01-01	119.31700000000001
2001-01-01	115.84800000000000
2002-01-01	121.11399999999999
2003-01-01	127.11399999999999
2004-01-01	129.63400000000000
2005-01-01	133.83600000000000
2006-01-01	143.36900000000000
2007-01-01	159.05200000000002
2008-01-01	167.59900000000002
2009-01-01	159.46200000000002
2010-01-01	145.39600000000002
2011-01-01	136.43600000000000
2012-01-01	132.11600000000000
2013-01-01	116.46000000000000
2014-01-01	108.61100000000000
2015-01-01	107.23500000000000
2016-01-01	106.30200000000000