Year % 2004 7.751907 2008 0.048695 2010 0.2927591 2011 0.3084148 2012 0.2949954 2013 0.3009496 2014 0 2015 5.703155 2016 4.404968 2017 4.564026 2018 0 2019 0 2020 0 2021 0.2468192