Year % (cumulative) 2006 0 2007 0 2008 0 2013 12.4661302566528 2014 12.6434602737427 2015 12.8939800262451 2016 13.2438497543335 2017 15.8560667037964 2018 18.2115802764893 2019 20.9909954071045 2020 21.901330947876 2021 23.434549331665 2022 23.2504024505615