Year	Percent
1986-01-01	101.66700000000000
1987-01-01	87.04820000000000
1988-01-01	98.05720000000000
1989-01-01	92.40780000000000
1990-01-01	89.63040000000000
1991-01-01	85.95710000000000
1992-01-01	81.09540000000000
1993-01-01	82.04450000000000
1994-01-01	83.90140000000000
1995-01-01	87.47980000000000
1996-01-01	91.43080000000000
1997-01-01	94.24110000000000
1998-01-01	91.06970000000000
1999-01-01	87.75920000000000
2000-01-01	90.77060000000000
2001-01-01	93.53950000000000
2002-01-01	93.82980000000000
2003-01-01	95.36500000000000
2004-01-01	97.05700000000000
2005-01-01	99.26970000000000
2006-01-01	101.77799999999999
2007-01-01	103.19700000000000
2008-01-01	97.27380000000000
2009-01-01	88.70390000000000
2010-01-01	86.11810000000000
2011-01-01	87.95920000000000
2012-01-01	87.21850000000000
2013-01-01	89.55370000000000
2014-01-01	93.27570000000000
2015-01-01	88.24100000000000