Year % (cumulative) 2005 41.8931999206543 2006 42.5461616516113 2007 44.6689910888672 2008 44.8999404907227 2009 43.887809753418 2010 43.9446487426758 2011 44.6344795227051 2012 44.3236083984375 2013 43.7780799865723 2014 45.1613807678223 2015 46.4865608215332 2016 47.6532287597656 2017 49.8638381958008 2018 50.5737724304199 2019 51.5953674316406 2020 53.2179412841797 2021 55.3560829162598 2022 56.3919639587402