Year % (cumulative) 2007 0.242632880806923 2008 0.398420631885529 2009 0.49554505944252 2010 0.396812349557877 2011 0.449189990758896 2012 0.354699492454529 2013 0.32872000336647 2014 0.585470020771027 2015 0.45100000500679 2016 0.647189974784851 2017 0.48717001080513 2018 0.446459323167801 2019 0.144580006599426 2020 0.437847405672073 2021 0.47761657834053 2022 0.547458529472351