Year % (cumulative) 2002 13.2008399963379 2007 20.4952030181885 2008 14.8457202911377 2009 15.3599901199341 2010 15.721360206604 2011 19.1687107086182 2012 17.2563953399658 2013 18.215030670166 2014 20.3467502593994 2015 21.7399997711182 2016 22.5822696685791 2017 22.583610534668 2018 23.2186126708984 2019 23.2534694671631 2020 23.6766624450684 2021 24.1220855712891 2022 24.0710487365723