Year % 1995 0.2898551 1997 0.1239157 2001 0 2002 0 2003 0 2004 0 2005 0 2006 0 2007 0.2900653 2008 0 2009 0 2010 0 2011 0 2012 0 2013 0 2015 0 2016 0 2017 0