Year	Number
1996	68.6170196533203
1998	46.2765960693359
2000	66.137565612793
2002	84.6560821533203
2003	70.8542709350586
2004	70.8737869262695
2005	74.271842956543
2006	64.7342987060547
2007	58.937198638916
2008	58.6538467407227
2009	66.8246459960938
2010	68.2464447021484
2011	62.0853080749512
2012	57.8199043273926
2013	59.7156410217285
2014	60
2015	60
2016	60.476188659668
2017	61.9047622680664
2018	60.8490562438965
2019	46.698112487793
2020	48.5849075317383
2021	51.4150924682617
2022	51.4150924682617