Year % (cumulative) 2000 3.82522010803223 2011 6.55955982208252 2012 12.565221786499 2013 12.9329175949097 2014 14.5928945541382 2015 14.8436326980591 2016 14.6159067153931 2017 14.2348308563232 2018 15.5916929244995 2019 16.0429916381836 2020 16.9386463165283 2021 0