Year Number 1996 95.1086959838867 1998 94.0217361450195 2000 81.5217361450195 2002 83.2432403564453 2003 83.2432403564453 2004 82.5870666503906 2005 83.3333358764648 2006 81.3725509643555 2007 83.980583190918 2008 84.4660186767578 2009 85.1674652099609 2010 81.339714050293 2011 79.1469192504883 2012 77.2511825561523 2013 78.1990509033203 2014 79.3269195556641 2015 78.5714263916016 2016 79.523811340332 2017 78.5714263916016 2018 80.9523773193359 2019 88.5714263916016 2020 87.1428604125977 2021 83.8095245361328 2022 82.0754699707031