Year	Percent
1982-01-01	206.45700000000000
1983-01-01	177.16400000000002
1984-01-01	223.98400000000000
1985-01-01	209.39400000000000
1986-01-01	133.75500000000000
1987-01-01	147.03100000000000
1988-01-01	168.63600000000000
1989-01-01	165.94500000000000
1990-01-01	184.13800000000000
1991-01-01	241.92500000000000
1992-01-01	267.69900000000000
1993-01-01	248.50799999999998
1994-01-01	216.97000000000000
1995-01-01	221.94700000000000
1996-01-01	149.58800000000000
1997-01-01	168.46200000000002
1998-01-01	175.70700000000000
1999-01-01	196.07800000000000
2000-01-01	180.68800000000000
2001-01-01	77.56600000000000
2002-01-01	45.70790000000000
2003-01-01	48.02950000000000
2004-01-01	50.30750000000000
2005-01-01	52.20180000000000
2006-01-01	50.93650000000000
2007-01-01	48.16870000000000
2008-01-01	50.11500000000000
2009-01-01	58.42810000000000
2010-01-01	67.57330000000000
2011-01-01	69.45410000000000
2012-01-01	70.07570000000000
2013-01-01	73.94240000000000
2014-01-01	78.62190000000000
2015-01-01	81.30199999999999
2016-01-01	75.83520000000000