Year	Percent
1993-01-01	116.10500000000000
1994-01-01	119.74200000000000
1995-01-01	118.02799999999999
1996-01-01	115.56900000000000
1997-01-01	118.16500000000000
1998-01-01	113.66100000000000
1999-01-01	104.78900000000000
2000-01-01	90.42299999999999
2001-01-01	72.30510000000000
2002-01-01	55.66470000000000
2003-01-01	47.88540000000000
2004-01-01	50.41570000000000
2005-01-01	55.92110000000000
2006-01-01	62.54490000000000
2007-01-01	70.30620000000000
2008-01-01	77.00820000000000
2009-01-01	77.55820000000000
2010-01-01	76.40150000000000
2011-01-01	78.60070000000000
2012-01-01	79.20540000000000
2013-01-01	77.48360000000000
2014-01-01	75.36810000000000
2015-01-01	73.70200000000000
2016-01-01	73.60150000000000