Year % (cumulative) 2006 0 2007 0.297102451324463 2008 0.282170742750168 2009 0.294711232185364 2010 0 2011 0.327842146158218 2012 0.352672666311264 2013 21.6170806884766 2014 20.493200302124 2015 20.487060546875 2016 21.6512508392334 2017 22.3296165466309 2018 22.8094596862793 2019 23.8044605255127 2020 25.700008392334 2021 25.5066566467285 2022 25.5605030059814