Year % (cumulative) 2014 23.3530750274658 2015 23.4537906646729 2016 24.7924480438232 2017 25.6033000946045 2018 26.9985313415527 2019 26.6417236328125 2020 26.7339496612549 2021 26.1854763031006 2022 26.5803070068359