Year % 1993 0 1997 0.0333707 1998 0.3688132 2000 0 2003 0 2005 0.0929133 2006 0.0869346 2007 0.0172444 2008 0.041619 2009 0 2010 0 2011 0.0391134 2012 0.0236737 2013 0.0236737 2014 0 2015 0 2016 0 2018 0 2019 0 2020 0.006604 2021 0.004387