Year % (cumulative) 1985 44.4000015258789 1990 50.6263313293457 2006 78.3385772705078 2007 79.0695419311523 2008 79.3841400146484 2009 80.3220672607422 2010 81.6081619262695 2011 82.8634262084961 2012 83.5268402099609 2013 84.6844329833984 2014 85.2921295166016 2015 85.722541809082 2016 85.5215225219727 2017 87.4921722412109 2018 88.2122497558594 2019 89.0068130493164 2020 89.9367218017578 2021 89.6587295532227 2022 91.6022491455078