Year	Number
1996	78.8944702148438
1998	83.5
2000	81.0945281982422
2002	82.5870666503906
2003	81.0945281982422
2004	77.8846130371094
2005	80.8612442016602
2006	73.2057418823242
2007	76.0765533447266
2008	81.25
2009	77.7251205444336
2010	78.1990509033203
2011	76.9953079223633
2012	81.6901397705078
2013	79.8122100830078
2014	79.3269195556641
2015	77.6190490722656
2016	74.2857131958008
2017	74.7619018554688
2018	74.7619018554688
2019	73.8095245361328
2020	78.5714263916016
2021	78.0952377319336
2022	77.8301849365234