Year % (cumulative) 2011 0 2012 0 2013 0 2014 0 2015 0.0204300004988909 2016 0.0278999991714954 2017 0.0184525195509195 2018 0.0280200000852346 2019 0.0180377457290888 2020 0.0294599998742342 2021 0.0231399200856686 2022 0.0219772681593895