Year	Number
1996	91.9354858398438
1998	91.9786071777344
2000	90.4255294799805
2002	91.0052947998047
2003	90.476188659668
2004	90.6403961181641
2005	89.2682952880859
2006	88.2926864624023
2007	88.8349533081055
2008	88.8349533081055
2009	88.9952163696289
2010	88.0952377319336
2011	88.1516571044922
2012	83.4123229980469
2013	82.4644546508789
2014	82.211540222168
2015	81.9047622680664
2016	80.9523773193359
2017	81.4285736083984
2018	81.4285736083984
2019	80.476188659668
2020	80.476188659668
2021	81.9047622680664
2022	81.1320724487305