Year	Number
1996	67.7595596313477
1998	75.4098358154297
2000	76.5027313232422
2002	73.5135116577148
2003	76.2162170410156
2004	79.6019897460938
2005	73.0392150878906
2006	78.5365829467773
2007	77.6699066162109
2008	78.6407775878906
2009	76.5550231933594
2010	80.3827743530273
2011	77.7251205444336
2012	75.8293838500977
2013	75.8293838500977
2014	75
2015	79.523811340332
2016	77.6190490722656
2017	80
2018	75.7142868041992
2019	77.6190490722656
2020	72.8571395874023
2021	76.6666641235352
2022	76.4150924682617