Year	Number
1996	55.1912574768066
1998	56.8306007385254
2000	57.3770484924316
2002	50.2702713012695
2003	49.1891899108887
2004	48.756217956543
2005	41.6666679382324
2006	45.365852355957
2007	44.6601943969727
2008	44.1747589111328
2009	47.8468894958496
2010	46.8899536132813
2011	45.497631072998
2012	51.1848335266113
2013	52.6066360473633
2014	48.0769233703613
2015	47.6190490722656
2016	46.1904754638672
2017	40.476188659668
2018	39.0476188659668
2019	40.476188659668
2020	46.6666679382324
2021	45.238094329834
2022	47.1698112487793