Year	Number
1996	53
1998	55.7213935852051
2000	52.7363166809082
2002	50.7462692260742
2003	55.7213935852051
2004	56.25
2005	58.1730766296387
2006	50.961540222168
2007	50.961540222168
2008	50.480770111084
2009	50.2369651794434
2010	48.8151664733887
2011	48.3568077087402
2012	48.8262901306152
2013	45.5399055480957
2014	47.290641784668
2015	44.8275871276855
2016	39.4088668823242
2017	37.9310340881348
2018	36.4077682495117
2019	34.2995185852051
2020	34.7826080322266
2021	34.2995185852051
2022	34.7826080322266