Year	Percent
2001-01-01	94.2357
2002-01-01	89.9419
2003-01-01	82.6637
2004-01-01	85.3382
2005-01-01	83.9216
2006-01-01	84.9988
2007-01-01	81.7329
2008-01-01	85.0012
2009-01-01	87.8468
2010-01-01	91.6398
2011-01-01	91.7083
2012-01-01	90.5210
2013-01-01	89.6750
2014-01-01	96.9495
2015-01-01	96.9954
2016-01-01	93.8088