Year	Number
2004	80.5970153808594
2005	89.7058792114258
2006	87.8048782348633
2007	87.8640747070313
2008	87.3786392211914
2009	87.5598068237305
2010	86.6028671264648
2011	87.6777267456055
2012	90.0473937988281
2013	91.4691925048828
2014	75
2015	74.2857131958008
2016	78.0952377319336
2017	81.4285736083984
2018	78.5714263916016
2019	80
2020	81.4285736083984
2021	80.476188659668
2022	79.7169799804688