Year	Number
1996	21.8579235076904
1998	15.8469944000244
2000	19.1256828308105
2002	18.9189186096191
2003	11.3513517379761
2004	11.4427862167358
2005	11.764705657959
2006	24.3902435302734
2007	27.1844654083252
2008	37.3786392211914
2009	39.2344512939453
2010	40.1913871765137
2011	38.3886260986328
2012	11.3744077682495
2013	5.68720388412476
2014	6.73076915740967
2015	4.7619047164917
2016	1.90476191043854
2017	2.38095235824585
2018	3.33333325386047
2019	3.80952382087708
2020	2.85714292526245
2021	2.85714292526245
2022	2.8301887512207