Year	Percent
1960-01-01	135.22200000000000
1961-01-01	165.01300000000000
1962-01-01	175.17900000000000
1963-01-01	143.38800000000000
1964-01-01	159.08200000000000
1965-01-01	186.61800000000000
1966-01-01	187.44299999999998
1967-01-01	172.06700000000000
1968-01-01	185.21599999999998
1969-01-01	210.45400000000000
1970-01-01	220.99800000000000
1971-01-01	201.11700000000002
1972-01-01	157.22000000000000
1973-01-01	117.69600000000000
1974-01-01	123.13000000000000
1975-01-01	107.18600000000000
1976-01-01	79.11100000000000
1977-01-01	57.45880000000000
1978-01-01	48.05690000000000
1979-01-01	67.22830000000000
1980-01-01	99.32470000000000
1981-01-01	104.91100000000000
1982-01-01	100.61399999999999
1983-01-01	110.02900000000000
1984-01-01	124.01799999999999
1985-01-01	133.89000000000000
1986-01-01	134.83300000000000
1987-01-01	125.78000000000000
1988-01-01	124.63900000000000
1989-01-01	132.39700000000002
1990-01-01	130.22100000000000
1991-01-01	116.08200000000001
1992-01-01	108.77400000000000
1993-01-01	118.44000000000000
1994-01-01	134.76100000000000
1995-01-01	144.33700000000002
1996-01-01	142.63500000000000
1997-01-01	138.63800000000000
1998-01-01	154.28700000000000
1999-01-01	163.75600000000000
2000-01-01	154.46600000000000
2001-01-01	146.55900000000000
2002-01-01	139.98300000000000
2003-01-01	136.56900000000000
2004-01-01	145.95500000000000
2005-01-01	176.68300000000000
2006-01-01	196.59900000000002
2007-01-01	189.86500000000000
2008-01-01	199.77200000000002
2009-01-01	189.61700000000002
2010-01-01	156.96200000000002
2011-01-01	139.58100000000002
2012-01-01	133.35200000000000
2013-01-01	132.08400000000000
2014-01-01	128.98200000000000
2015-01-01	133.55700000000002
2016-01-01	142.20600000000002