Year	Number
1996	52.7173919677734
1998	35.8695640563965
2000	40.2173919677734
2002	23.7837829589844
2003	19.4594593048096
2004	22.3880596160889
2005	25.4901962280273
2006	39.2156867980957
2007	38.8349533081055
2008	44.1747589111328
2009	42.1052627563477
2010	39.2344512939453
2011	41.7061614990234
2012	45.497631072998
2013	47.3933639526367
2014	51.9230766296387
2015	48.0952377319336
2016	51.9047622680664
2017	55.7142868041992
2018	52.3809509277344
2019	56.6666679382324
2020	58.0952377319336
2021	60.9523811340332
2022	59.4339637756348