Year % (cumulative) 2003 28.9843349456787 2004 29.2936630249023 2005 29.9206676483154 2006 30.6616439819336 2007 31.282829284668 2008 32.2918930053711 2009 33.0502128601074 2010 33.4525260925293 2011 33.9928092956543 2012 34.4112777709961 2013 35.1927528381348 2014 36.4432106018066 2015 37.2062301635742 2016 37.858943939209 2017 38.0525588989258 2018 38.8577728271484 2019 39.175968170166 2020 39.2099075317383 2021 39.6169204711914 2022 39.6483955383301