Year	Number
1996	19.6721305847168
1998	33.8797798156738
2000	43.1693992614746
2002	34.0540542602539
2003	45.9459457397461
2004	42.2885589599609
2005	35.7843132019043
2006	47.3170738220215
2007	50.970874786377
2008	43.2038841247559
2009	44.9760780334473
2010	42.1052627563477
2011	43.1279602050781
2012	42.6540298461914
2013	41.2322273254395
2014	54.3269233703613
2015	53.8095245361328
2016	47.6190490722656
2017	44.761905670166
2018	44.2857131958008
2019	44.2857131958008
2020	44.761905670166
2021	41.9047622680664
2022	37.2641525268555