Year % (cumulative) 2006 0.342114150524139 2007 0.384516060352325 2008 0.435228824615479 2009 0.388868063688278 2010 0.373178362846375 2011 0.437961161136627 2012 0.466897964477539 2013 0.478063106536865 2014 21.6183586120605 2015 22.0234088897705 2016 22.5566291809082 2017 23.10205078125 2018 23.6303691864014 2019 24.9427280426025 2020 25.5497207641602 2021 26.9198131561279 2022 27.0949516296387