Year % (cumulative) 2009 0 2010 0 2011 0.309547811746597 2012 0.234569996595383 2013 0.218992859125137 2014 0.301580011844635 2015 0.408930957317352 2016 0.413060009479523 2017 0.512000024318695 2018 0.557952344417572 2019 0.512939989566803 2020 0.44100683927536 2022 0.404359996318817