Year Number 1996 36.9565200805664 1998 28.8043479919434 2000 28.2608699798584 2002 50.2702713012695 2003 49.7297286987305 2004 47.2636833190918 2005 52.9411773681641 2006 52.9411773681641 2007 54.8543701171875 2008 59.7087364196777 2009 62.2009582519531 2010 60.2870826721191 2011 55.9241714477539 2012 65.4028472900391 2013 64.4549789428711 2014 60.5769233703613 2015 64.2857131958008 2016 64.7619018554688 2017 56.1904754638672 2018 62.3809509277344 2019 63.8095245361328 2020 66.6666641235352 2021 67.6190490722656 2022 67.9245300292969