Year	Number
1996	50.5
1998	46.2686576843262
2000	49.2537307739258
2002	46.2686576843262
2003	44.2786064147949
2004	41.8269233703613
2005	43.75
2006	46.1538467407227
2007	46.6346168518066
2008	49.519229888916
2009	44.0758285522461
2010	46.445499420166
2011	49.2957763671875
2012	50.7042236328125
2013	51.6431922912598
2014	49.7536964416504
2015	50.2463035583496
2016	42.8571434020996
2017	41.8719215393066
2018	39.8058242797852
2019	41.062801361084
2020	37.6811599731445
2021	38.6473426818848
2022	51.6908226013184