Year	Number
2004	72.1393051147461
2005	68.1372528076172
2006	68.6274490356445
2007	69.9029159545898
2008	68.9320373535156
2009	71.7703323364258
2010	72.7272720336914
2011	72.511848449707
2012	71.0900497436523
2013	69.6682434082031
2014	58.6538467407227
2015	59.0476188659668
2016	59.0476188659668
2017	58.5714302062988
2018	58.0952377319336
2019	58.5714302062988
2020	70.476188659668
2021	70.476188659668
2022	70.7547149658203