Year	Number
1996	2.12765955924988
1998	0
2000	0
2002	12.6984128952026
2003	6.03015089035034
2004	17.4757289886475
2005	18.4466018676758
2006	22.2222213745117
2007	27.0531406402588
2008	21.634614944458
2009	21.3270149230957
2010	25.1184825897217
2011	28.4360198974609
2012	24.6445503234863
2013	26.0663509368896
2014	29.5238094329834
2015	30
2016	25.7142848968506
2017	30
2018	30.1886787414551
2019	28.301887512207
2020	21.698112487793
2021	28.301887512207
2022	27.3584899902344