Year	Number
1996	78.8944702148438
1998	82
2000	72.6368179321289
2002	81.592041015625
2003	82.0895538330078
2004	69.711540222168
2005	70.3349304199219
2006	72.7272720336914
2007	78.9473648071289
2008	77.8846130371094
2009	81.9905242919922
2010	82.9383850097656
2011	78.8732376098633
2012	75.5868530273438
2013	72.7699508666992
2014	81.25
2015	80.476188659668
2016	78.5714263916016
2017	77.6190490722656
2018	77.1428604125977
2019	78.0952377319336
2020	79.0476226806641
2021	81.9047622680664
2022	82.5471725463867