Year % (cumulative) 2006 0.224203750491142 2007 0.114226333796978 2008 0.131077066063881 2009 0.114989653229713 2010 0.119133315980434 2011 0.147474482655525 2012 0.195277377963066 2013 0.293750137090683 2014 14.2671546936035 2015 15.7924480438232 2016 16.4593372344971 2017 17.6492691040039 2018 18.5436477661133 2019 18.9851608276367 2020 20.3058967590332 2021 20.7776508331299 2022 21.03955078125