Year	Number
2004	60.5769233703613
2005	57.8947372436523
2006	55.9808616638184
2007	57.8947372436523
2008	58.6538467407227
2009	82.9383850097656
2010	82.9383850097656
2011	78.4037551879883
2012	77.9342727661133
2013	76.9953079223633
2014	72.5961532592773
2015	75.7142868041992
2016	78.0952377319336
2017	78.5714263916016
2018	77.6190490722656
2019	78.5714263916016
2020	80.9523773193359
2021	81.4285736083984
2022	79.7169799804688