Year	Number
1996	77.4193572998047
1998	78.0748672485352
2000	78.1914901733398
2002	74.6031723022461
2003	85.185188293457
2004	79.8029556274414
2005	82.9268264770508
2006	79.0243911743164
2007	79.6116485595703
2008	81.0679626464844
2009	78.9473648071289
2010	80.9523773193359
2011	79.620849609375
2012	78.1990509033203
2013	77.7251205444336
2014	76.9230804443359
2015	76.6666641235352
2016	79.523811340332
2017	75.7142868041992
2018	76.1904754638672
2019	74.2857131958008
2020	71.4285736083984
2021	74.7619018554688
2022	74.0566024780273