Year % (cumulative) 2002 16.0597305297852 2006 19.2436351776123 2007 19.8251075744629 2008 20.6674900054932 2009 22.1003704071045 2010 23.5479202270508 2011 24.4025897979736 2012 25.1213092803955 2013 25.9972400665283 2014 27.1228694915771 2015 27.6819305419922 2016 28.1719207763672 2017 29.3663120269775 2018 29.8605728149414 2019 30.5878791809082 2020 31.4802398681641 2021 31.8619709014893 2022 32.2158508300781