Year	Percent
1960-01-01	116.78800000000000
1961-01-01	117.66300000000000
1962-01-01	120.80900000000000
1963-01-01	119.54799999999999
1964-01-01	116.23800000000000
1965-01-01	114.51299999999999
1966-01-01	116.59700000000001
1967-01-01	123.08800000000000
1968-01-01	127.03500000000000
1969-01-01	128.17700000000002
1970-01-01	128.20100000000000
1971-01-01	128.30600000000000
1972-01-01	127.18000000000000
1973-01-01	121.00600000000000
1974-01-01	114.69400000000000
1975-01-01	111.74500000000000
1976-01-01	105.15799999999999
1977-01-01	87.15520000000000
1978-01-01	72.09000000000000
1979-01-01	72.23610000000000
1980-01-01	72.01750000000000
1981-01-01	68.92270000000000
1982-01-01	61.52720000000000
1983-01-01	53.10180000000000
1984-01-01	53.03380000000000
1985-01-01	56.98040000000000
1986-01-01	57.52250000000000
1987-01-01	56.29780000000000
1988-01-01	85.46500000000000
1989-01-01	129.02600000000000
1990-01-01	103.14399999999999
1991-01-01	92.54530000000000
1992-01-01	106.32100000000000
1993-01-01	123.14800000000000
1994-01-01	137.40900000000000
1995-01-01	127.72100000000000
1996-01-01	90.28250000000000
1997-01-01	76.35190000000000
1998-01-01	75.62390000000000
1999-01-01	68.24920000000000
2000-01-01	67.94470000000000
2001-01-01	64.71480000000000
2002-01-01	61.55200000000000
2003-01-01	65.19590000000000
2004-01-01	63.01440000000000
2005-01-01	64.21520000000000
2006-01-01	72.77010000000000
2007-01-01	80.06580000000000
2008-01-01	78.55360000000000
2009-01-01	73.50600000000000
2010-01-01	70.83560000000000
2011-01-01	72.47970000000000
2012-01-01	74.57080000000000
2013-01-01	76.95930000000000
2014-01-01	77.17570000000000
2015-01-01	77.06790000000000
2016-01-01	80.98100000000001