Year	Percent
2003-01-01	89.7424
2004-01-01	86.1458
2005-01-01	83.7582
2006-01-01	84.6551
2007-01-01	87.2082
2008-01-01	86.5900
2009-01-01	80.2172
2010-01-01	76.2918
2011-01-01	73.0994
2012-01-01	69.9584
2013-01-01	67.4404
2014-01-01	68.0114
2015-01-01	51.9974
2016-01-01	49.2856