Year	Number
1996	59.7989959716797
1998	58
2000	54.7263679504395
2002	59.7014923095703
2003	60.6965179443359
2004	51.4423065185547
2005	50.7177047729492
2006	58.3732070922852
2007	57.4162673950195
2008	62.019229888916
2009	60.6635055541992
2010	61.1374397277832
2011	59.6244125366211
2012	61.5023460388184
2013	61.0328636169434
2014	62.980770111084
2015	62.3809509277344
2016	67.6190490722656
2017	60.476188659668
2018	62.3809509277344
2019	62.8571434020996
2020	62.3809509277344
2021	61.4285697937012
2022	62.7358474731445