Year	Number
1996	51.6304359436035
1998	52.7173919677734
2000	52.1739120483398
2002	52.972972869873
2003	45.9459457397461
2004	46.2686576843262
2005	38.7254905700684
2006	49.5098037719727
2007	50
2008	51.4563102722168
2009	51.6746406555176
2010	49.7607650756836
2011	47.8672981262207
2012	49.7630348205566
2013	48.8151664733887
2014	51.4423065185547
2015	49.0476188659668
2016	47.6190490722656
2017	46.6666679382324
2018	42.8571434020996
2019	46.6666679382324
2020	50
2021	46.6666679382324
2022	49.0566024780273