Year	Percent
1979-01-01	13.63920000000000
1980-01-01	13.21050000000000
1981-01-01	96.02590000000000
1982-01-01	213.18300000000000
1983-01-01	193.42200000000000
1984-01-01	184.52200000000002
1985-01-01	174.81900000000002
1986-01-01	164.20200000000000
1987-01-01	144.19500000000000
1988-01-01	122.93000000000000
1989-01-01	87.76690000000000
1990-01-01	64.74920000000000
1991-01-01	86.07050000000000
1992-01-01	84.25100000000000
1993-01-01	72.99970000000000
1994-01-01	66.66950000000000
1995-01-01	64.17210000000000
1996-01-01	67.62190000000000
1997-01-01	70.65660000000000
1998-01-01	70.13550000000000
1999-01-01	71.07980000000000
2000-01-01	73.38750000000000
2001-01-01	71.73690000000000
2002-01-01	72.21140000000000
2003-01-01	75.69920000000000
2004-01-01	77.33750000000000
2005-01-01	76.62320000000000
2006-01-01	79.06850000000000
2007-01-01	89.38990000000000
2008-01-01	103.50500000000000
2009-01-01	106.38700000000000
2010-01-01	102.71100000000000
2011-01-01	103.51400000000000
2012-01-01	102.59600000000000
2013-01-01	99.73410000000000
2014-01-01	98.04870000000000
2015-01-01	96.88290000000000
2016-01-01	94.78540000000000