Year	Percent
1960-01-01	144.50600000000000
1961-01-01	144.94700000000000
1962-01-01	139.30100000000002
1963-01-01	133.61900000000000
1964-01-01	130.25000000000000
1965-01-01	128.89500000000000
1966-01-01	125.52200000000000
1967-01-01	118.28399999999999
1968-01-01	113.24400000000000
1969-01-01	107.75600000000000
1970-01-01	99.68520000000000
1971-01-01	90.47780000000000
1972-01-01	79.30670000000000
1973-01-01	70.40140000000000
1974-01-01	72.04580000000000
1975-01-01	73.26890000000000
1976-01-01	66.44450000000000
1977-01-01	66.28910000000000
1978-01-01	72.73060000000000
1979-01-01	81.26800000000000
1980-01-01	90.55320000000000
1981-01-01	93.64460000000000
1982-01-01	87.80540000000000
1983-01-01	90.33270000000000
1984-01-01	97.16240000000000
1985-01-01	89.63570000000000
1986-01-01	78.65930000000000
1987-01-01	80.70490000000000
1988-01-01	84.56820000000000
1989-01-01	80.78270000000000
1990-01-01	83.85730000000000
1991-01-01	74.94490000000000
1992-01-01	70.18980000000000
1993-01-01	79.05940000000000
1994-01-01	93.19020000000000
1995-01-01	117.94800000000000
1996-01-01	132.36800000000000
1997-01-01	125.71400000000000
1998-01-01	120.64200000000001
1999-01-01	128.44299999999998
2000-01-01	119.86800000000000
2001-01-01	100.83100000000000
2002-01-01	90.57510000000000
2003-01-01	79.76700000000000
2004-01-01	73.65060000000000
2005-01-01	69.74750000000000
2006-01-01	70.65570000000000
2007-01-01	74.85020000000000
2008-01-01	75.14670000000000
2009-01-01	69.28260000000000
2010-01-01	61.98480000000000
2011-01-01	60.18950000000000
2012-01-01	70.35530000000000
2013-01-01	79.32890000000000
2014-01-01	79.63540000000000
2015-01-01	81.33460000000000
2016-01-01	82.98010000000000