Year	Percent
1982-01-01	71.44610000000000
1983-01-01	73.98460000000000
1984-01-01	79.25440000000000
1985-01-01	81.39580000000000
1986-01-01	82.31580000000000
1987-01-01	121.92900000000000
1988-01-01	151.96000000000000
1989-01-01	155.06900000000000
1990-01-01	147.92500000000000
1991-01-01	123.67800000000000
1992-01-01	89.00560000000000
1993-01-01	68.59810000000000
1994-01-01	63.56730000000000
1995-01-01	59.70460000000000
1996-01-01	55.05680000000000
1997-01-01	57.70230000000000
1998-01-01	61.84630000000000
1999-01-01	64.74110000000000
2000-01-01	75.38530000000000
2001-01-01	84.36510000000000
2002-01-01	87.06750000000000
2003-01-01	97.52060000000000
2004-01-01	109.60100000000000
2005-01-01	116.64299999999999
2006-01-01	121.12100000000001
2007-01-01	127.96100000000000
2008-01-01	138.35100000000000
2009-01-01	130.39800000000000
2010-01-01	119.96300000000000
2011-01-01	120.01600000000000
2012-01-01	111.72300000000000
2013-01-01	101.61399999999999
2014-01-01	95.21980000000000
2015-01-01	85.46370000000000
2016-01-01	75.04740000000000