Year	Number
1996	38.2513656616211
1998	46.9945373535156
2000	46.4480857849121
2002	45.9459457397461
2003	51.8918914794922
2004	51.7412948608398
2005	50.4901962280273
2006	57.5609741210938
2007	55.3398056030273
2008	58.737865447998
2009	62.2009582519531
2010	65.5502395629883
2011	62.0853080749512
2012	61.1374397277832
2013	61.1374397277832
2014	65.8653869628906
2015	55.238094329834
2016	53.3333320617676
2017	51.4285697937012
2018	47.6190490722656
2019	45.238094329834
2020	57.6190490722656
2021	55.7142868041992
2022	57.0754699707031