Year	Number
1996	72.2826080322266
1998	75
2000	77.7173919677734
2002	70.8108139038086
2003	66.4864883422852
2004	63.6815910339355
2005	61.764705657959
2006	55.3921585083008
2007	57.2815551757813
2008	53.8834953308105
2009	54.5454559326172
2010	54.5454559326172
2011	54.028434753418
2012	52.6066360473633
2013	53.0805702209473
2014	51.4423065185547
2015	51.4285697937012
2016	50.9523811340332
2017	47.1428565979004
2018	43.8095245361328
2019	47.1428565979004
2020	47.1428565979004
2021	53.3333320617676
2022	52.8301887512207