Year Number 1996 37.7659568786621 1998 63.2978706359863 2000 69.8412704467773 2002 56.6137580871582 2003 69.3467330932617 2004 67.9611663818359 2005 64.5631103515625 2006 60.8695640563965 2007 61.835750579834 2008 69.2307662963867 2009 75.8293838500977 2010 71.5639801025391 2011 70.1421813964844 2012 72.9857788085938 2013 72.0379180908203 2014 67.6190490722656 2015 66.1904754638672 2016 64.2857131958008 2017 58.0952377319336 2018 56.6037750244141 2019 58.0188674926758 2020 56.6037750244141 2021 59.4339637756348 2022 65.5660400390625