Year % 1996 0 1997 0 2000 7.37506 2001 6.984816 2002 0.0151936 2008 1.208372 2009 1.209562 2010 0.5834162 2011 1.039095 2012 0.9122647 2013 1.387093 2014 0 2015 0.7032349 2016 0.8541758 2017 0.9906165 2018 0.641917 2019 0.4194137 2020 0.4144285 2021 0.2801252