Year % (cumulative) 2006 0 2007 0 2008 0 2009 0 2010 0 2011 0 2012 0 2013 0 2014 0.29237112402916 2015 0.297541350126266 2016 0.320938795804977 2017 0.366942346096039 2018 0.398762941360474 2019 0.407357096672058 2020 0.428539991378784 2021 0.432289928197861 2022 0.444470286369324