Year	Number
1996	36.0655746459961
1998	46.9945373535156
2000	47.5409851074219
2002	43.7837829589844
2003	39.4594612121582
2004	44.2786064147949
2005	42.6470603942871
2006	42.4390258789063
2007	50.4854354858398
2008	45.6310691833496
2009	44.0191383361816
2010	42.5837326049805
2011	48.3412322998047
2012	42.6540298461914
2013	41.2322273254395
2014	35.5769233703613
2015	33.8095245361328
2016	36.6666679382324
2017	44.2857131958008
2018	42.3809509277344
2019	40.9523811340332
2020	43.3333320617676
2021	36.1904754638672
2022	33.4905662536621