Year % (cumulative) 2013 19.4259796142578 2014 19.9017601013184 2015 20.6730899810791 2016 20.4075393676758 2017 20.772331237793 2018 21.7858905792236 2019 22.5712108612061 2020 24.0824909210205 2021 25.8177375793457 2022 26.128345489502