Year	Number
1996	15.0753765106201
1998	14
2000	17.412935256958
2002	8.4577112197876
2003	12.4378108978271
2004	8.65384578704834
2005	12.9186601638794
2006	6.69856452941895
2007	9.09090900421143
2008	9.13461494445801
2009	5.21327018737793
2010	5.68720388412476
2011	5.63380289077759
2012	6.57277011871338
2013	6.1032862663269
2014	1.92307686805725
2015	1.90476191043854
2016	3.33333325386047
2017	3.33333325386047
2018	4.7619047164917
2019	4.7619047164917
2020	4.7619047164917
2021	4.7619047164917
2022	4.71698093414307