Year	Number
1996	90.452262878418
1998	90
2000	90.5472640991211
2002	86.5671615600586
2003	87.0646743774414
2004	85.0961532592773
2005	85.6459350585938
2006	87.0813369750977
2007	86.1244049072266
2008	86.0576934814453
2009	86.2559204101563
2010	85.7819900512695
2011	85.4460067749023
2012	83.0985946655273
2013	82.1596221923828
2014	80.288459777832
2015	78.0952377319336
2016	80.476188659668
2017	81.9047622680664
2018	80.476188659668
2019	80.9523773193359
2020	76.6666641235352
2021	77.6190490722656
2022	77.3584899902344