Year % (cumulative) 2000 1.51568996906281 2011 4.06178998947144 2012 8.08954334259033 2013 9.81070423126221 2014 10.870831489563 2015 11.592791557312 2016 10.5616388320923 2017 11.8003053665161 2018 12.5723400115967 2019 12.9790372848511 2020 14.8380260467529 2021 0