Year Number 1996 82.4468078613281 1998 88.2978744506836 2000 23.8095245361328 2002 30.6878299713135 2003 59.2964820861816 2004 46.1165046691895 2005 45.6310691833496 2006 48.3091773986816 2007 51.2077293395996 2008 51.9230766296387 2009 52.1327018737793 2010 56.3981056213379 2011 56.3981056213379 2012 52.6066360473633 2013 57.8199043273926 2014 60.9523811340332 2015 66.1904754638672 2016 62.8571434020996 2017 54.2857131958008 2018 58.0188674926758 2019 61.3207550048828 2020 64.6226425170898 2021 63.2075462341309 2022 57.0754699707031