Year Number 2007 44.6601943969727 2008 45.1456298828125 2009 42.1052627563477 2010 57.1428565979004 2011 55.9241714477539 2012 58.7677726745605 2013 30.8056869506836 2014 37.980770111084 2015 67.1428604125977 2016 70 2017 68.5714263916016 2018 68.0952377319336 2019 68.5714263916016 2020 70.476188659668 2021 71.4285736083984 2022 71.698112487793