Year % (cumulative) 1972 42.0337715148926 1982 55.7000007629395 1983 44.2999992370605 2004 95.2245635986328 2006 75.245231628418 2007 82.9994277954102 2009 83.494140625 2010 83.5205764770508 2011 84.3447418212891 2012 84.8392715454102 2013 87.08203125 2014 87.3911590576172 2015 87.8855819702148 2016 89.5679702758789 2017 89.4828186035156 2018 89.1779251098633 2019 89.871940612793 2020 90.5706176757812 2021 90.4493942260742 2022 90.7246170043945