Year	Percent
1960-01-01	11.550500000000000
1961-01-01	11.611200000000000
1962-01-01	12.472000000000001
1963-01-01	13.625000000000000
1964-01-01	15.544000000000000
1965-01-01	17.114200000000000
1966-01-01	19.546200000000000
1967-01-01	24.174300000000000
1968-01-01	28.621600000000000
1969-01-01	38.613500000000000
1970-01-01	42.993400000000000
1971-01-01	48.568900000000000
1972-01-01	49.953900000000000
1973-01-01	44.804300000000000
1974-01-01	39.894400000000000
1975-01-01	33.302500000000000
1976-01-01	26.990700000000000
1977-01-01	24.797800000000000
1978-01-01	22.092900000000000
1979-01-01	21.305500000000000
1980-01-01	23.456500000000000
1981-01-01	27.065700000000000
1982-01-01	30.540100000000000
1983-01-01	36.948700000000000
1984-01-01	42.866800000000000
1985-01-01	46.545000000000000
1986-01-01	49.817300000000000
1987-01-01	52.485500000000000
1988-01-01	54.351000000000006
1989-01-01	57.978800000000000
1990-01-01	64.274600000000000
1991-01-01	70.460500000000000
1992-01-01	75.045700000000000
1993-01-01	79.531300000000000
1994-01-01	82.179200000000000
1995-01-01	79.642700000000000
1996-01-01	85.970300000000000
1997-01-01	89.654600000000000
1998-01-01	91.769500000000000
1999-01-01	96.041000000000000
2000-01-01	97.788900000000000
2001-01-01	103.583000000000000
2002-01-01	103.416000000000000
2003-01-01	95.567000000000010
2004-01-01	94.932700000000000
2005-01-01	95.772500000000000
2006-01-01	100.080000000000000
2007-01-01	103.671000000000000
2008-01-01	108.682999999999990
2009-01-01	119.710000000000000
2010-01-01	117.282999999999990
2011-01-01	117.455000000000000
2012-01-01	113.710000000000000
2013-01-01	105.342000000000010
2014-01-01	96.691500000000000
2015-01-01	88.432000000000000
2016-01-01	83.200800000000000