Year	Number
1996	57.4468078613281
1998	53.7234039306641
2000	45.5026473999023
2002	68.2539672851563
2003	63.3165817260742
2004	61.6504859924316
2005	63.1067962646484
2006	54.1062812805176
2007	59.4202880859375
2008	58.6538467407227
2009	53.0805702209473
2010	52.1327018737793
2011	62.0853080749512
2012	63.9810409545898
2013	64.4549789428711
2014	58.0952377319336
2015	65.7142868041992
2016	65.7142868041992
2017	65.7142868041992
2018	63.2075462341309
2019	59.4339637756348
2020	60.8490562438965
2021	59.4339637756348
2022	59.4339637756348