Year	Number
1996	36.4130439758301
1998	35.8695640563965
2000	58.152172088623
2002	45.4054069519043
2003	56.7567558288574
2004	51.243782043457
2005	58.3333320617676
2006	51.9607849121094
2007	48.0582542419434
2008	48.5436897277832
2009	47.3684196472168
2010	44.9760780334473
2011	46.445499420166
2012	46.445499420166
2013	45.971565246582
2014	48.5576934814453
2015	48.0952377319336
2016	43.3333320617676
2017	39.523811340332
2018	38.0952377319336
2019	39.523811340332
2020	41.4285697937012
2021	43.3333320617676
2022	44.3396224975586