Year Number 1996 90.4255294799805 1998 93.0851058959961 2000 87.8306884765625 2002 95.2380981445313 2003 72.3618087768555 2004 71.8446578979492 2005 68.4466018676758 2006 59.4202880859375 2007 61.835750579834 2008 63.461540222168 2009 63.9810409545898 2010 62.5592422485352 2011 62.0853080749512 2012 58.7677726745605 2013 59.2417068481445 2014 53.8095245361328 2015 58.0952377319336 2016 44.2857131958008 2017 57.1428565979004 2018 56.6037750244141 2019 66.5094375610352 2020 67.4528274536133 2021 58.4905662536621 2022 59.4339637756348