Year	Number
1996	81.7204284667969
1998	84.4919815063477
2000	77.1276626586914
2002	76.7195739746094
2003	79.8941802978516
2004	83.2512283325195
2005	80
2006	81.9512176513672
2007	80.5825271606445
2008	79.6116485595703
2009	80.8612442016602
2010	79.0476226806641
2011	79.1469192504883
2012	76.7772521972656
2013	74.407585144043
2014	74.5192337036133
2015	75.7142868041992
2016	76.1904754638672
2017	78.0952377319336
2018	79.523811340332
2019	80
2020	78.0952377319336
2021	75.2380981445313
2022	78.301887512207