Year	Number
1996	59.7989959716797
1998	61
2000	63.1840782165527
2002	60.6965179443359
2003	56.2189064025879
2004	58.1730766296387
2005	52.1531105041504
2006	50.7177047729492
2007	55.0239219665527
2008	55.769229888916
2009	63.5071105957031
2010	62.5592422485352
2011	62.4413146972656
2012	64.3192520141602
2013	60.0938949584961
2014	65.8653869628906
2015	63.3333320617676
2016	58.0952377319336
2017	59.523811340332
2018	59.0476188659668
2019	59.0476188659668
2020	60.9523811340332
2021	58.0952377319336
2022	56.6037750244141