Year	Percent
1960-01-01	84.85060000000000
1961-01-01	87.22470000000000
1962-01-01	90.55440000000000
1963-01-01	91.74480000000000
1964-01-01	92.20850000000000
1965-01-01	91.18080000000000
1966-01-01	91.27420000000000
1967-01-01	91.86920000000000
1968-01-01	89.52090000000000
1969-01-01	89.21660000000000
1970-01-01	88.69100000000000
1971-01-01	87.09600000000000
1972-01-01	87.49330000000000
1973-01-01	87.55590000000000
1974-01-01	88.05000000000000
1975-01-01	89.43680000000000
1976-01-01	82.51230000000000
1977-01-01	75.40880000000000
1978-01-01	73.65800000000000
1979-01-01	71.13310000000000
1980-01-01	70.92000000000000
1981-01-01	72.39080000000000
1982-01-01	73.32850000000000
1983-01-01	74.87630000000000
1984-01-01	77.91340000000000
1985-01-01	85.24950000000000
1986-01-01	101.53000000000000
1987-01-01	114.37400000000000
1988-01-01	116.16900000000000
1989-01-01	117.03600000000000
1990-01-01	116.03299999999999
1991-01-01	111.24200000000000
1992-01-01	103.37500000000000
1993-01-01	101.71100000000000
1994-01-01	103.58500000000000
1995-01-01	106.55500000000000
1996-01-01	113.00900000000000
1997-01-01	125.77500000000000
1998-01-01	133.20700000000000
1999-01-01	134.06100000000000
2000-01-01	139.85900000000000
2001-01-01	143.58900000000000
2002-01-01	143.28500000000000
2003-01-01	144.97000000000000
2004-01-01	149.26800000000000
2005-01-01	154.58800000000000
2006-01-01	159.33500000000000
2007-01-01	172.58900000000003
2008-01-01	192.48500000000000
2009-01-01	196.98200000000000
2010-01-01	194.31900000000002
2011-01-01	194.80900000000003
2012-01-01	193.44299999999998
2013-01-01	190.24200000000002
2014-01-01	186.82800000000000
2015-01-01	196.54400000000000
2016-01-01	201.09400000000002