Year % 1995 46.95652 1997 45.76621 2001 51.0224 2002 51.49144 2003 54.6875 2004 54.6875 2005 68.6747 2006 54.83871 2007 50.14503 2008 50.14503 2009 50.14503 2010 50.14503 2011 48.91508 2012 50.15886 2013 43.20306 2015 43.18755 2016 43.18755 2017 43.18755