Year	Number
1996	82.5136642456055
1998	77.5956268310547
2000	73.7704925537109
2002	79.4594573974609
2003	75.6756744384766
2004	75.6218872070313
2005	73.0392150878906
2006	68.7804870605469
2007	69.9029159545898
2008	73.3009719848633
2009	74.1626815795898
2010	69.8564605712891
2011	69.1943130493164
2012	70.1421813964844
2013	74.407585144043
2014	72.5961532592773
2015	74.2857131958008
2016	74.7619018554688
2017	79.0476226806641
2018	76.1904754638672
2019	75.7142868041992
2020	70.9523773193359
2021	69.523811340332
2022	71.698112487793