Year % (cumulative) 2006 0 2007 0 2008 0 2009 0 2010 0 2011 0 2012 0 2013 0 2014 15.9285774230957 2015 16.0332260131836 2016 18.4089221954346 2017 20.4342823028564 2018 19.6946315765381 2019 21.2288570404053 2020 22.1020202636719 2021 24.2031230926514 2022 23.5961685180664