Year	Percent
1996-01-01	81.77720000000000
1997-01-01	85.69290000000000
1998-01-01	84.73740000000000
1999-01-01	91.40810000000000
2000-01-01	90.62690000000000
2001-01-01	91.26920000000000
2002-01-01	91.75450000000000
2003-01-01	94.32150000000000
2004-01-01	88.93220000000000
2005-01-01	89.07510000000000
2006-01-01	95.22290000000000
2007-01-01	95.26290000000000
2008-01-01	95.77820000000000
2009-01-01	93.27610000000000
2010-01-01	93.18160000000000
2011-01-01	94.98010000000000
2012-01-01	94.86490000000000
2013-01-01	94.56700000000001
2014-01-01	93.27080000000000
2015-01-01	95.60640000000000
2016-01-01	95.55370000000000