Year	Percent
1996-01-01	84.64730000000000
1997-01-01	85.71430000000000
1998-01-01	92.30770000000000
1999-01-01	95.48020000000000
2000-01-01	101.72399999999999
2001-01-01	115.81200000000001
2002-01-01	117.41700000000000
2003-01-01	127.37899999999999
2004-01-01	130.42200000000000
2005-01-01	120.98400000000000
2006-01-01	106.13600000000001
2007-01-01	85.32900000000000
2008-01-01	60.19280000000000
2009-01-01	60.42570000000000
2010-01-01	55.62100000000000
2011-01-01	47.95310000000000
2012-01-01	63.28810000000000
2013-01-01	70.12580000000000
2014-01-01	77.43580000000000
2015-01-01	75.55880000000000
2016-01-01	82.93030000000000