Year Number 1996 89.361701965332 1998 64.8936157226563 2000 69.8412704467773 2002 82.539680480957 2003 79.8994979858398 2004 74.271842956543 2005 80.0970840454102 2006 66.6666641235352 2007 66.6666641235352 2008 62.019229888916 2009 55.9241714477539 2010 64.4549789428711 2011 62.0853080749512 2012 57.8199043273926 2013 60.1895751953125 2014 65.2380981445313 2015 63.8095245361328 2016 61.4285697937012 2017 62.8571434020996 2018 65.0943374633789 2019 60.8490562438965 2020 60.8490562438965 2021 58.4905662536621 2022 60.8490562438965