Year	Number
2002	67.1957702636719
2003	65.6084671020508
2004	59.6059112548828
2005	51.2195129394531
2006	48.2926826477051
2007	49.5145645141602
2008	48.0582542419434
2009	37.3205757141113
2010	40.9523811340332
2011	37.9146919250488
2012	42.6540298461914
2013	44.5497627258301
2014	52.4038467407227
2015	51.4285697937012
2016	51.9047622680664
2017	49.0476188659668
2018	49.523811340332
2019	52.8571434020996
2020	54.761905670166
2021	61.4285697937012
2022	58.0188674926758