Year	Number
1996	6.01092910766602
1998	4.37158489227295
2000	3.27868843078613
2002	3.24324321746826
2003	1.62162160873413
2004	0.995024859905243
2005	1.96078431606293
2006	0
2007	0.485436886548996
2008	0.485436886548996
2009	0
2010	0.478468894958496
2011	0.947867274284363
2012	0.473933637142181
2013	0.473933637142181
2014	3.8461537361145
2015	4.7619047164917
2016	4.7619047164917
2017	4.7619047164917
2018	4.7619047164917
2019	6.66666650772095
2020	3.80952382087708
2021	5.7142858505249
2022	3.30188679695129