Year % (cumulative) 2004 14.8416795730591 2005 15.6406402587891 2006 16.7111797332764 2007 17.3812503814697 2008 20.6875 2009 21.7169399261475 2010 23.5827598571777 2011 25.1279907226562 2012 26.1064701080322 2013 27.1220893859863 2014 28.5405807495117 2015 30.4469699859619 2016 31.2161102294922 2017 32.6171913146973 2018 27.8573093414307 2019 35.9632682800293 2020 30.9446468353271 2021 32.2902603149414 2022 33.8728637695312