Year	Number
1996	59.2964820861816
1998	60
2000	59.7014923095703
2002	58.2089538574219
2003	62.6865653991699
2004	58.6538467407227
2005	57.8947372436523
2006	58.8516731262207
2007	58.3732070922852
2008	58.6538467407227
2009	61.1374397277832
2010	62.0853080749512
2011	62.4413146972656
2012	61.9718322753906
2013	60.0938949584961
2014	65.3846130371094
2015	61.4285697937012
2016	56.1904754638672
2017	56.6666679382324
2018	57.6190490722656
2019	57.6190490722656
2020	55.238094329834
2021	56.6666679382324
2022	56.6037750244141