Year	Number
1996	42.2110557556152
1998	35
2000	31.8407955169678
2002	38.8059692382813
2003	42.2885589599609
2004	42.3076934814453
2005	39.2344512939453
2006	41.6267929077148
2007	42.1052627563477
2008	43.75
2009	47.3933639526367
2010	50.2369651794434
2011	48.8262901306152
2012	46.0093879699707
2013	46.0093879699707
2014	54.3269233703613
2015	53.3333320617676
2016	52.3809509277344
2017	48.5714302062988
2018	48.5714302062988
2019	47.6190490722656
2020	48.0952377319336
2021	52.3809509277344
2022	54.7169799804688