Year	Number
1996	62.2950820922852
1998	59.0163917541504
2000	63.3879776000977
2002	65.405403137207
2003	70.8108139038086
2004	71.6417922973633
2005	72.0588226318359
2006	77.0731735229492
2007	72.8155364990234
2008	76.2135925292969
2009	71.7703323364258
2010	72.2488021850586
2011	72.9857788085938
2012	69.1943130493164
2013	70.1421813964844
2014	72.5961532592773
2015	72.3809509277344
2016	73.3333358764648
2017	73.8095245361328
2018	75.7142868041992
2019	75.7142868041992
2020	80
2021	80.476188659668
2022	78.7735824584961