Year	Percent
1961-01-01	124.848999999999990
1962-01-01	110.852000000000000
1963-01-01	101.081000000000000
1964-01-01	103.354000000000000
1965-01-01	101.189000000000000
1966-01-01	98.048800000000000
1967-01-01	95.092800000000000
1968-01-01	93.496100000000000
1969-01-01	91.431900000000000
1970-01-01	90.599500000000000
1971-01-01	89.444400000000000
1972-01-01	87.368000000000000
1973-01-01	90.722400000000000
1974-01-01	87.562999999999990
1975-01-01	86.577000000000010
1976-01-01	87.899400000000000
1977-01-01	83.620200000000000
1978-01-01	83.620200000000000
1979-01-01	74.614700000000000
1980-01-01	73.806800000000000
1981-01-01	68.707500000000000
1982-01-01	59.024500000000000
1983-01-01	54.525800000000000
1984-01-01	53.479700000000000
1985-01-01	53.479700000000000
1986-01-01	50.617000000000000
1987-01-01	47.805100000000000
1988-01-01	43.157900000000000
1989-01-01	43.882800000000000
1990-01-01	48.471000000000004
1991-01-01	54.640000000000000
1992-01-01	59.136400000000000
1993-01-01	61.633999999999990
1994-01-01	59.991600000000000
1995-01-01	55.740200000000000
1996-01-01	51.186500000000000
1997-01-01	50.023000000000000
1998-01-01	51.152600000000000
1999-01-01	54.383800000000000
2000-01-01	69.679800000000000
2001-01-01	80.393900000000000
2002-01-01	82.150800000000000
2003-01-01	86.673700000000000
2004-01-01	93.434100000000000
2005-01-01	97.557500000000000
2006-01-01	99.176200000000000
2007-01-01	102.517999999999990
2008-01-01	107.693000000000000
2009-01-01	104.960000000000000
2010-01-01	101.762999999999990
2011-01-01	107.356000000000010
2012-01-01	104.172000000000010
2013-01-01	93.776300000000000
2014-01-01	87.082400000000000
2015-01-01	79.892800000000000
2016-01-01	75.834000000000000