Year % 1995 0 1997 0 2002 1.292177 2006 0.4611259 2007 0.5686551 2008 0.0468172 2009 0.0318459 2010 0.0147626 2011 0.0238581 2012 0.0282603 2013 0.039249 2014 0 2015 0.0370222 2016 0.0476079 2017 0.0459183 2018 0.0338337 2019 0.0199926 2020 0 2021 0.0293114