Year % (cumulative) 2006 0 2007 0 2008 0 2009 0 2010 0 2011 0 2012 0 2013 0 2014 14.3676996231079 2015 15.116250038147 2016 14.9492597579956 2017 14.879599571228 2018 15.6543064117432 2019 16.0188331604004 2020 16.0712699890137 2021 16.4680423736572 2022 17.8515777587891