Year	Number
1996	54.2553176879883
1998	45.2127647399902
2000	56.6137580871582
2002	52.9100532531738
2003	56.7839202880859
2004	57.7669906616211
2005	58.737865447998
2006	60.386474609375
2007	60.8695640563965
2008	62.980770111084
2009	56.3981056213379
2010	56.8720397949219
2011	55.4502372741699
2012	57.3459701538086
2013	60.1895751953125
2014	63.3333320617676
2015	65.7142868041992
2016	69.0476226806641
2017	68.0952377319336
2018	66.0377349853516
2019	66.9811325073242
2020	65.5660400390625
2021	58.4905662536621
2022	61.3207550048828