Year	Number
1996	62
1998	56.2189064025879
2000	53.7313423156738
2002	34.3283576965332
2003	29.8507461547852
2004	21.634614944458
2005	22.5961532592773
2006	28.8461532592773
2007	34.6153831481934
2008	37.019229888916
2009	39.8104248046875
2010	37.4407577514648
2011	38.4976539611816
2012	34.2723007202148
2013	36.1502342224121
2014	39.4088668823242
2015	40.3940887451172
2016	44.8275871276855
2017	46.305419921875
2018	50
2019	48.3091773986816
2020	52.6570053100586
2021	51.6908226013184
2022	53.6231880187988