Year	Number
1996	55.7377052307129
1998	51.3661193847656
2000	57.3770484924316
2002	51.8918914794922
2003	51.3513526916504
2004	46.766170501709
2005	34.3137245178223
2006	40.4878044128418
2007	45.1456298828125
2008	44.1747589111328
2009	43.0622024536133
2010	41.1483268737793
2011	42.6540298461914
2012	42.1800956726074
2013	45.0236968994141
2014	44.711540222168
2015	46.1904754638672
2016	38.0952377319336
2017	40.9523811340332
2018	43.8095245361328
2019	36.6666679382324
2020	38.0952377319336
2021	36.1904754638672
2022	35.8490562438965