Year	Percent
1960-01-01	28.13890000000000
1961-01-01	29.32390000000000
1962-01-01	29.68830000000000
1963-01-01	25.69750000000000
1964-01-01	25.34280000000000
1965-01-01	26.82160000000000
1966-01-01	28.47720000000000
1967-01-01	28.82770000000000
1968-01-01	30.88140000000000
1969-01-01	34.44060000000000
1970-01-01	32.79980000000000
1971-01-01	34.20400000000000
1972-01-01	35.97040000000000
1973-01-01	36.99440000000000
1974-01-01	42.55750000000000
1975-01-01	52.31810000000000
1976-01-01	55.54980000000000
1977-01-01	59.31110000000000
1978-01-01	62.46880000000000
1979-01-01	61.48420000000000
1980-01-01	66.92940000000000
1981-01-01	77.09940000000000
1982-01-01	82.90620000000000
1983-01-01	86.39170000000000
1984-01-01	89.24770000000000
1985-01-01	102.36800000000000
1986-01-01	122.84600000000000
1987-01-01	118.48899999999999
1988-01-01	109.62200000000001
1989-01-01	111.08600000000000
1990-01-01	84.62810000000000
1991-01-01	57.33560000000000
1992-01-01	75.14680000000000
1993-01-01	93.97710000000000
1994-01-01	98.09330000000000
1995-01-01	99.32790000000000
1996-01-01	103.39900000000000
1997-01-01	108.64600000000000
1998-01-01	117.73700000000001
1999-01-01	116.33700000000000
2000-01-01	108.69300000000000
2001-01-01	120.61100000000000
2002-01-01	118.52200000000000
2003-01-01	115.00100000000000
2004-01-01	111.56000000000000
2005-01-01	110.09700000000001
2006-01-01	109.77100000000000
2007-01-01	108.53100000000000
2008-01-01	106.04600000000000
2009-01-01	126.28000000000000
2010-01-01	124.99400000000000
2011-01-01	125.84899999999999
2012-01-01	131.28799999999998
2013-01-01	135.12100000000000
2014-01-01	133.16800000000000
2015-01-01	132.44400000000000
2016-01-01	128.01200000000000