Year % (cumulative) 2014 17.1956005096436 2015 18.2399196624756 2016 18.0144500732422 2017 18.5234909057617 2018 19.6615657806396 2019 19.9677295684814 2020 21.1753997802734 2021 22.7441635131836 2022 22.3946876525879