Year % (cumulative) 1978 1.2861499786377 2012 9.42537021636963 2014 9.39223957061768 2015 9.71992015838623 2017 16.9343738555908 2018 11.0781497955322 2019 18.2043857574463 2020 14.6015996932983 2021 20.8754482269287 2022 15.7437496185303