Year Number 2003 98.9949722290039 2004 99.5145645141602 2005 100 2006 100 2007 100 2008 100 2009 100 2010 100 2011 99.5260696411133 2012 99.5260696411133 2013 99.5260696411133 2014 97.1428604125977 2015 97.6190490722656 2016 98.0952377319336 2017 98.5714263916016 2018 99.5283050537109 2019 97.1698150634766 2020 98.5849075317383 2021 99.0566024780273 2022 99.0566024780273