Year % 2006 89.5512 2007 88.0047 2008 85.2055 2009 83.5212 2010 74.2722 2011 71.4972 2012 87.7351 2013 75.2925 2014 88.0534 2015 81.4609 2016 75.8205 2017 79.4257 2018 82.727 2019 86.3362 2020 92.93841 2021 89.8815653874762