Year % 2001 0 2002 0 2004 0 2005 0 2006 0 2007 0.0145008 2008 0 2009 0 2010 0 2011 0 2012 0.0022816 2013 0 2014 0 2015 0 2016 0 2017 0 2018 0 2019 0 2020 0 2021 0