Year	Number
1996	31
1998	24.3781089782715
2000	23.3830852508545
2002	20.8955230712891
2003	21.8905467987061
2004	22.5961532592773
2005	21.634614944458
2006	9.61538505554199
2007	9.13461494445801
2008	10.5769233703613
2009	9.95260620117188
2010	9.00473976135254
2011	35.6807518005371
2012	43.6619720458984
2013	45.0704231262207
2014	55.1724128723145
2015	55.6650238037109
2016	56.1576347351074
2017	53.2019691467285
2018	53.3980598449707
2019	55.5555572509766
2020	56.5217399597168
2021	54.1062812805176
2022	40.5797119140625