Year	Number
1996	49.4565200805664
1998	48.3695640563965
2000	41.3043479919434
2002	40
2003	44.8648643493652
2004	46.2686576843262
2005	43.6274528503418
2006	42.6470603942871
2007	47.0873794555664
2008	42.7184448242188
2009	39.2344512939453
2010	39.2344512939453
2011	38.8625602722168
2012	37.9146919250488
2013	38.8625602722168
2014	41.8269233703613
2015	45.238094329834
2016	46.6666679382324
2017	48.5714302062988
2018	49.523811340332
2019	50
2020	57.1428565979004
2021	50
2022	48.5849075317383