Year	Number
1996	83.1521759033203
1998	78.260871887207
2000	81.5217361450195
2002	79.4594573974609
2003	78.9189224243164
2004	79.6019897460938
2005	78.4313735961914
2006	83.3333358764648
2007	85.4368896484375
2008	84.4660186767578
2009	82.7751159667969
2010	81.339714050293
2011	83.4123229980469
2012	86.2559204101563
2013	85.3080596923828
2014	83.6538467407227
2015	80
2016	81.4285736083984
2017	80.476188659668
2018	80.9523773193359
2019	75.2380981445313
2020	71.9047622680664
2021	71.4285736083984
2022	72.1698150634766