Year	Percent
1996-01-01	89.44030000000000
1997-01-01	87.32480000000000
1998-01-01	90.28090000000000
1999-01-01	91.88740000000000
2000-01-01	92.75040000000000
2001-01-01	93.88450000000000
2002-01-01	95.05720000000000
2003-01-01	87.63010000000000
2004-01-01	86.15180000000000
2005-01-01	85.55290000000000
2006-01-01	89.19840000000000
2007-01-01	93.04750000000000
2008-01-01	93.10700000000001
2009-01-01	92.63390000000000
2010-01-01	100.00000000000000
2011-01-01	100.00000000000000
2012-01-01	58.91880000000000
2013-01-01	59.24010000000000
2014-01-01	58.31490000000000
2015-01-01	57.52020000000000
2016-01-01	58.78810000000000