Year	Number
1996	0.5
1998	0
2000	0
2002	0
2003	0
2004	0.480769217014313
2005	0.961538434028625
2006	0
2007	0
2008	0
2009	0
2010	0
2011	0
2012	0.469483554363251
2013	0
2014	0.492610841989517
2015	0.492610841989517
2016	0
2017	0
2018	0
2019	0
2020	0
2021	0
2022	0