Year	Number
1996	60.638298034668
1998	67.5531921386719
2000	55.0264549255371
2002	65.0793685913086
2003	61.8090438842773
2004	55.3398056030273
2005	54.8543701171875
2006	45.4106292724609
2007	42.0289840698242
2008	47.5961532592773
2009	50.2369651794434
2010	50.2369651794434
2011	50.2369651794434
2012	48.3412322998047
2013	52.1327018737793
2014	56.1904754638672
2015	56.1904754638672
2016	51.9047622680664
2017	51.9047622680664
2018	50
2019	51.4150924682617
2020	59.4339637756348
2021	57.5471687316895
2022	58.0188674926758