Year Number 1996 97.2826080322266 1998 95.1086959838867 2000 95.6521759033203 2002 100 2003 100 2004 100 2005 100 2006 98.0392150878906 2007 99.5145645141602 2008 100 2009 100 2010 100 2011 100 2012 100 2013 100 2014 99.5192337036133 2015 99.0476226806641 2016 100 2017 99.523811340332 2018 99.523811340332 2019 100 2020 99.523811340332 2021 99.523811340332 2022 99.5283050537109