Year Number 1996 76.5957412719727 1998 73.9361724853516 2000 75.1322784423828 2002 62.4338607788086 2003 86.4321594238281 2004 72.3300933837891 2005 61.1650466918945 2006 64.2512054443359 2007 61.835750579834 2008 41.8269233703613 2009 32.7014236450195 2010 26.0663509368896 2011 36.0189590454102 2012 39.8104248046875 2013 36.4928894042969 2014 36.6666679382324 2015 42.3809509277344 2016 48.0952377319336 2017 48.0952377319336 2018 38.2075462341309 2019 50.4716987609863 2020 43.3962249755859 2021 41.5094337463379 2022 41.5094337463379