Year % 1995 0 1996 0 1997 0 1998 0 1999 0 2000 0 2001 2.079785 2002 0.1707491 2003 0 2004 0 2005 0 2006 0 2007 0 2008 0.466033 2009 0 2010 0 2011 0 2012 0 2013 0 2015 0.05931 2018 0 2020 0 2021 0