Year scale 0 - 100 2004 69.375 2005 65.625 2006 66.25 2007 68.75 2008 71.25 2009 73.75 2010 73.75 2011 75 2012 71.25 2013 70 2014 72.5 2015 76.875 2016 75.625 2017 75.625 2018 63.75 2019 61.875 2020 60