Year % (cumulative) 2006 0 2007 0 2008 0 2009 0 2010 0 2011 0 2012 0 2013 0 2014 12.1950168609619 2015 12.2415790557861 2016 12.4325399398804 2017 12.7452993392944 2018 12.8073997497559 2019 13.4084548950195 2020 13.8913698196411 2021 14.2630672454834 2022 14.170708656311