Year	Number
1996	57.7889442443848
1998	60
2000	44.2786064147949
2002	42.7860679626465
2003	44.7761192321777
2004	50
2005	50.2392349243164
2006	46.8899536132813
2007	46.8899536132813
2008	49.519229888916
2009	48.8151664733887
2010	50.2369651794434
2011	52.1126747131348
2012	52.1126747131348
2013	50.2347412109375
2014	57.6923065185547
2015	53.3333320617676
2016	45.238094329834
2017	46.6666679382324
2018	47.1428565979004
2019	47.1428565979004
2020	44.761905670166
2021	49.523811340332
2022	53.7735862731934