Year	Number
1996	60.8695640563965
1998	57.0652160644531
2000	57.0652160644531
2002	51.8918914794922
2003	55.6756744384766
2004	49.7512435913086
2005	52.9411773681641
2006	56.8627433776855
2007	56.3106803894043
2008	54.8543701171875
2009	53.1100463867188
2010	51.6746406555176
2011	42.1800956726074
2012	45.0236968994141
2013	43.6018943786621
2014	40.8653831481934
2015	39.523811340332
2016	35.238094329834
2017	39.0476188659668
2018	33.8095245361328
2019	38.5714302062988
2020	40.9523811340332
2021	38.0952377319336
2022	37.2641525268555