Year % (cumulative) 2006 0 2007 0.401302397251129 2008 0.303334504365921 2013 13.7364902496338 2014 14.2856197357178 2015 13.6806802749634 2016 13.7328195571899 2017 17.5744552612305 2018 18.6337108612061 2019 19.9632015228271 2020 21.7847499847412 2021 21.6781253814697 2022 22.0376853942871