Year	Percent
1964-01-01	16.767100000000000
1965-01-01	16.026800000000000
1966-01-01	16.405000000000000
1967-01-01	18.868300000000000
1968-01-01	20.398100000000000
1969-01-01	21.499000000000002
1970-01-01	21.630500000000000
1971-01-01	24.161600000000000
1972-01-01	26.981300000000000
1973-01-01	26.919400000000000
1974-01-01	26.603500000000000
1975-01-01	27.135700000000000
1976-01-01	28.887700000000000
1977-01-01	31.028900000000000
1978-01-01	31.217500000000000
1979-01-01	30.179300000000000
1980-01-01	31.456300000000000
1981-01-01	32.758700000000000
1982-01-01	35.512500000000000
1983-01-01	40.942900000000000
1984-01-01	46.844200000000000
1985-01-01	51.600000000000000
1986-01-01	54.164100000000000
1987-01-01	54.988100000000000
1988-01-01	54.699100000000000
1989-01-01	56.704800000000000
1990-01-01	60.608500000000000
1991-01-01	65.542700000000000
1992-01-01	67.954900000000000
1993-01-01	71.384800000000000
1994-01-01	72.637200000000000
1995-01-01	72.244900000000000
1996-01-01	74.836200000000000
1997-01-01	84.760200000000000
1998-01-01	99.978700000000000
1999-01-01	101.594000000000000
2000-01-01	100.252000000000010
2001-01-01	101.491000000000000
2002-01-01	97.437800000000000
2003-01-01	96.777100000000000
2004-01-01	96.432700000000000
2005-01-01	92.903200000000000
2006-01-01	89.596700000000000
2007-01-01	85.677200000000000
2008-01-01	87.505300000000000
2009-01-01	91.728700000000000
2010-01-01	87.949600000000000
2011-01-01	92.917800000000000
2012-01-01	99.146900000000000
2013-01-01	109.055000000000000
2014-01-01	114.640000000000000
2015-01-01	115.008000000000000
2016-01-01	114.452000000000010