Year	Percent
1960-01-01	37.506500000000000
1961-01-01	38.633900000000000
1962-01-01	38.875800000000000
1963-01-01	39.228300000000000
1964-01-01	40.219200000000000
1965-01-01	40.943900000000000
1966-01-01	40.527200000000000
1967-01-01	39.996300000000000
1968-01-01	39.218700000000000
1969-01-01	37.887500000000000
1970-01-01	36.658000000000000
1971-01-01	35.528900000000000
1972-01-01	37.092100000000000
1973-01-01	38.344800000000000
1974-01-01	37.022900000000000
1975-01-01	35.851600000000000
1976-01-01	35.446200000000000
1977-01-01	34.664900000000000
1978-01-01	33.595600000000000
1979-01-01	32.894000000000000
1980-01-01	32.841800000000000
1981-01-01	31.951500000000000
1982-01-01	31.533100000000000
1983-01-01	32.670900000000000
1984-01-01	32.108000000000004
1985-01-01	33.653600000000000
1986-01-01	35.194500000000000
1987-01-01	35.276500000000000
1988-01-01	36.535300000000000
1989-01-01	41.075200000000000
1990-01-01	46.898000000000000
1991-01-01	49.352400000000000
1992-01-01	49.204200000000000
1993-01-01	50.077500000000000
1994-01-01	50.971400000000000
1995-01-01	53.056700000000000
1996-01-01	54.721800000000000
1997-01-01	56.189400000000000
1998-01-01	57.785900000000000
1999-01-01	60.363800000000000
2000-01-01	60.904900000000000
2001-01-01	61.779200000000000
2002-01-01	63.101900000000000
2003-01-01	64.954800000000000
2004-01-01	67.992800000000000
2005-01-01	69.621700000000000
2006-01-01	72.869700000000000
2007-01-01	82.052800000000000
2008-01-01	91.937100000000000
2009-01-01	95.723000000000000
2010-01-01	93.076700000000000
2011-01-01	94.870900000000000
2012-01-01	98.590100000000000
2013-01-01	94.262700000000000
2014-01-01	89.838300000000000
2015-01-01	102.992000000000000
2016-01-01	105.422000000000010