Year	Number
1996	46.2365608215332
1998	49.7326202392578
2000	54.2553176879883
2002	47.6190490722656
2003	51.3227500915527
2004	49.7536964416504
2005	50.2439041137695
2006	37.5609741210938
2007	38.8349533081055
2008	40.7766990661621
2009	32.0574150085449
2010	29.0476188659668
2011	32.7014236450195
2012	31.2796211242676
2013	34.1232223510742
2014	26.4423084259033
2015	35.238094329834
2016	31.9047622680664
2017	40.9523811340332
2018	34.2857131958008
2019	26.1904754638672
2020	25.7142848968506
2021	25.7142848968506
2022	24.5283012390137