Year	Percent
2001-01-01	100.00000000000000
2002-01-01	100.00000000000000
2003-01-01	96.79299999999999
2004-01-01	78.99130000000000
2005-01-01	70.28020000000000
2006-01-01	69.26020000000000
2007-01-01	63.86320000000000
2008-01-01	65.51420000000000
2009-01-01	68.13000000000000
2010-01-01	69.79370000000000
2011-01-01	67.83120000000000
2012-01-01	70.28430000000000
2013-01-01	70.41740000000000
2014-01-01	75.86350000000000
2015-01-01	85.47660000000000
2016-01-01	83.42330000000000