Year	Number
1996	57.4468078613281
1998	45.2127647399902
2000	61.375659942627
2002	70.3703689575195
2003	58.2914581298828
2004	52.9126205444336
2005	19.4174766540527
2006	42.512077331543
2007	46.3768119812012
2008	54.8076934814453
2009	52.6066360473633
2010	52.1327018737793
2011	54.9763031005859
2012	44.0758285522461
2013	46.9194297790527
2014	52.3809509277344
2015	51.4285697937012
2016	52.3809509277344
2017	27.619047164917
2018	28.7735843658447
2019	25.943395614624
2020	26.4150943756104
2021	35.3773574829102
2022	33.9622650146484