Year	Number
1996	59.7826080322266
1998	61.4130439758301
2000	58.6956520080566
2002	57.2972984313965
2003	56.2162170410156
2004	52.7363166809082
2005	51.470588684082
2006	53.9215698242188
2007	55.3398056030273
2008	62.1359214782715
2009	54.5454559326172
2010	55.5023918151855
2011	57.3459701538086
2012	55.9241714477539
2013	55.4502372741699
2014	55.288459777832
2015	56.1904754638672
2016	57.6190490722656
2017	58.0952377319336
2018	57.6190490722656
2019	57.6190490722656
2020	50
2021	46.1904754638672
2022	43.3962249755859