Year % (cumulative) 2002 7.8535099029541 2006 9.24151134490967 2007 9.48021984100342 2008 10.3752098083496 2009 10.924280166626 2010 11.3233404159546 2011 12.2845897674561 2012 12.9495000839233 2013 13.4900798797607 2014 13.2564496994019 2015 14.2316999435425 2016 14.4644298553467 2017 14.7372102737427 2018 14.9416828155518 2019 15.3871297836304 2020 15.6046304702759 2021 15.7281799316406 2022 16.4383201599121