Year Number 1996 97.3404235839844 1998 91.4893646240234 2000 95.2380981445313 2002 94.7089920043945 2003 96.9849243164063 2004 90.7766952514648 2005 82.5242691040039 2006 90.8212585449219 2007 83.5748825073242 2008 80.288459777832 2009 83.4123229980469 2010 86.7298583984375 2011 81.9905242919922 2012 81.9905242919922 2013 88.6255950927734 2014 89.0476226806641 2015 79.523811340332 2016 84.7619018554688 2017 82.8571395874023 2018 79.2452850341797 2019 81.6037750244141 2020 86.7924499511719 2021 90.0943374633789 2022 87.7358474731445