Year % (cumulative) 2006 0.252595156431198 2007 0.358309775590897 2008 0.38135689496994 2009 0.386456787586212 2010 0.383610337972641 2011 0.315268665552139 2012 0.401164054870605 2013 0.33445930480957 2014 14.2514410018921 2015 14.9358491897583 2016 15.6096878051758 2017 16.2548542022705 2018 17.4497737884521 2019 16.9211387634277 2020 17.3694553375244 2021 16.9339694976807 2022 16.84619140625