Year	Number
1996	80.6451644897461
1998	81.2834243774414
2000	82.4468078613281
2002	80.4232788085938
2003	80.9523773193359
2004	83.2512283325195
2005	81.4634170532227
2006	84.8780517578125
2007	84.9514541625977
2008	82.0388336181641
2009	83.7320556640625
2010	84.2857131958008
2011	88.1516571044922
2012	84.8341217041016
2013	81.0426559448242
2014	82.211540222168
2015	80.9523773193359
2016	81.9047622680664
2017	81.4285736083984
2018	81.4285736083984
2019	80.476188659668
2020	80
2021	81.9047622680664
2022	81.1320724487305