Year Number 2008 0.970873773097992 2009 0.478468894958496 2010 0 2011 1.42180097103119 2012 0.473933637142181 2013 0.473933637142181 2014 1.44230771064758 2015 31.9047622680664 2016 33.8095245361328 2017 33.3333320617676 2018 33.3333320617676 2019 34.2857131958008 2020 37.6190490722656 2021 36.1904754638672 2022 41.5094337463379