Year % (cumulative) 1989 59.1501083374023 2000 70.6925430297852 2006 83.773193359375 2007 85.0730667114258 2008 84.1666717529297 2009 83.908821105957 2010 84.1398086547852 2011 84.2541580200195 2012 85.342903137207 2013 86.1067886352539 2014 81.5642623901367 2015 83.2914276123047 2016 83.6081771850586 2017 83.5998001098633 2018 84.3147811889648 2019 85.1640090942383 2020 85.3327484130859 2021 83.8756713867188 2022 84.3856048583984