Year Number 2004 87.0646743774414 2005 82.8431396484375 2006 68.6274490356445 2007 69.9029159545898 2008 68.9320373535156 2009 71.7703323364258 2010 72.7272720336914 2011 72.511848449707 2012 71.0900497436523 2013 69.6682434082031 2014 69.2307662963867 2015 68.0952377319336 2016 78.0952377319336 2017 78.0952377319336 2018 77.1428604125977 2019 86.1904754638672 2020 88.5714263916016 2021 89.523811340332 2022 90.0943374633789