Year Percent 1996-01-01 83.88799999999999 1997-01-01 86.74640000000000 1998-01-01 100.00000000000000 1999-01-01 100.00000000000000 2000-01-01 94.83370000000000 2001-01-01 100.00000000000000 2002-01-01 82.30540000000000 2003-01-01 72.11970000000000 2004-01-01 74.88180000000000 2005-01-01 75.21600000000001 2006-01-01 76.53680000000000 2007-01-01 85.30640000000000 2008-01-01 90.42570000000000 2009-01-01 85.60190000000000 2010-01-01 67.38790000000000 2011-01-01 64.98370000000000 2012-01-01 70.79220000000000 2013-01-01 69.39420000000000 2014-01-01 84.34260000000000 2015-01-01 62.95840000000000 2016-01-01 65.03790000000000