Year % 2007 94.53742 2008 94.37145 2009 93.47253 2010 95.2917 2011 96.86674 2012 100.56793 2013 93.21276 2014 94.44499 2015 88.76634 2016 51.44717 2017 83.9686 2018 85.8676 2019 77.3635 2020 94.83535