Year % (cumulative) 2009 40.2999610900879 2010 39.2318496704102 2011 38.9741287231445 2012 40.533031463623 2014 43.2971000671387 2015 44.2080116271973 2016 43.7413291931152 2017 45.0233612060547 2018 45.3683280944824 2019 45.5256614685059 2020 45.7421226501465 2021 45.0184288024902 2022 44.9455337524414