Year Number 1996 84.5744705200195 1998 84.5744705200195 2000 92.0634918212891 2002 77.7777786254883 2003 68.3417053222656 2004 68.9320373535156 2005 77.1844635009766 2006 76.8115921020508 2007 74.3961334228516 2008 71.1538467407227 2009 66.3507080078125 2010 76.7772521972656 2011 75.3554534912109 2012 70.1421813964844 2013 72.0379180908203 2014 59.0476188659668 2015 67.6190490722656 2016 70.9523773193359 2017 73.3333358764648 2018 67.4528274536133 2019 68.3962249755859 2020 70.2830200195313 2021 70.2830200195313 2022 72.6415100097656