Year	Number
1996	16.4893608093262
1998	32.9787216186523
2000	30.6878299713135
2002	41.2698402404785
2003	39.1959800720215
2004	30.0970878601074
2005	37.3786392211914
2006	40.0966186523438
2007	51.6908226013184
2008	52.8846168518066
2009	57.3459701538086
2010	50.7108993530273
2011	23.222749710083
2012	21.8009471893311
2013	20.8530807495117
2014	36.1904754638672
2015	33.3333320617676
2016	32.8571434020996
2017	33.3333320617676
2018	32.0754699707031
2019	26.4150943756104
2020	24.5283012390137
2021	24.5283012390137
2022	20.2830181121826