Year	Number
1996	82.5136642456055
1998	84.6994552612305
2000	85.792350769043
2002	83.2432403564453
2003	85.405403137207
2004	75.6218872070313
2005	73.529411315918
2006	73.6585388183594
2007	77.1844635009766
2008	75.2427215576172
2009	77.0334930419922
2010	78.9473648071289
2011	81.9905242919922
2012	76.7772521972656
2013	72.9857788085938
2014	72.5961532592773
2015	74.2857131958008
2016	76.6666641235352
2017	80
2018	74.2857131958008
2019	73.3333358764648
2020	75.7142868041992
2021	84.2857131958008
2022	80.1886825561523