Year	Number
1996	4.25531911849976
1998	8.51063823699951
2000	12.1693124771118
2002	4.7619047164917
2003	3.01507544517517
2004	1.45631062984467
2005	0.970873773097992
2006	0.966183602809906
2007	0.483091801404953
2008	0
2009	0
2010	0
2011	0.473933637142181
2012	0.947867274284363
2013	1.89573454856873
2014	4.2857141494751
2015	4.7619047164917
2016	4.7619047164917
2017	6.1904764175415
2018	5.18867921829224
2019	4.24528312683105
2020	2.8301887512207
2021	1.88679242134094
2022	4.24528312683105