Year	Number
1996	61.9565200805664
1998	59.2391319274902
2000	63.5869560241699
2002	71.3513488769531
2003	61.6216201782227
2004	61.1940307617188
2005	51.470588684082
2006	50
2007	49.5145645141602
2008	38.8349533081055
2009	34.9282302856445
2010	30.6220092773438
2011	32.7014236450195
2012	39.8104248046875
2013	38.8625602722168
2014	32.211540222168
2015	29.0476188659668
2016	32.3809509277344
2017	30.4761905670166
2018	29.5238094329834
2019	31.9047622680664
2020	30.9523811340332
2021	22.380952835083
2022	21.698112487793