Year % (cumulative) 2002 10.2185201644897 2006 11.0985069274902 2007 11.3839797973633 2008 11.88440990448 2009 11.9790802001953 2010 12.4349699020386 2011 13.2768802642822 2012 13.5799102783203 2013 13.5708599090576 2014 13.8389797210693 2015 14.6984701156616 2016 14.7619104385376 2017 14.6248197555542 2018 14.7296009063721 2019 15.2333297729492 2020 15.3638896942139 2021 15.1400604248047 2022 15.5488195419312