Year Number 1996 1.08937561511993 1998 0.967956066131592 2000 0.754748404026031 2002 1.11665415763855 2003 1.00941443443298 2004 0.974532723426819 2005 1.02774882316589 2006 0.780889987945557 2007 0.879288077354431 2008 0.890551447868347 2009 0.707766652107239 2010 0.6402587890625 2011 0.946499407291412 2012 0.971312403678894 2013 0.94480174779892 2014 0.667965948581696 2015 0.988632321357727 2016 0.999218165874481 2017 0.962364137172699 2018 0.859399259090424 2019 0.801905751228333 2020 0.872974157333374 2021 0.832465350627899 2022 0.835721731185913