Year % (cumulative) 2010 12.9675207138062 2011 10.9777603149414 2012 13.6100873947144 2013 12.5923204421997 2014 14.2675924301147 2015 14.0421600341797 2016 14.9400997161865 2017 15.2437696456909 2018 16.6728115081787 2019 16.4490814208984 2020 19.722240447998 2021 20.3219699859619 2022 21.0626277923584