Year % (cumulative) 2002 13.7678298950195 2005 13.6049747467041 2006 13.2943687438965 2007 14.324387550354 2008 13.6950588226318 2009 14.4866189956665 2010 16.2418880462646 2011 17.495138168335 2012 17.838794708252 2013 16.3906478881836 2014 16.3643283843994 2015 17.3009357452393 2016 18.9113330841064 2017 19.0085620880127 2018 18.4992599487305 2019 19.2323436737061 2020 21.3801002502441 2021 21.6956367492676 2022 21.7494697570801