Year Number 1996 0.790487110614777 1998 0.763205170631409 2000 0.74830287694931 2002 0.867863118648529 2003 0.621469795703888 2004 0.702606558799744 2005 0.659460783004761 2006 0.682441473007202 2007 0.764767169952393 2008 0.711206674575806 2009 0.692689776420593 2010 0.712015807628632 2011 0.716491401195526 2012 0.684159576892853 2013 0.602282524108887 2014 0.704518795013428 2015 0.804019331932068 2016 0.595875561237335 2017 0.40112042427063 2018 0.40541660785675 2019 0.471980392932892 2020 0.614857494831085 2021 0.836070001125336 2022 0.970633506774902