Year	Number
1996	9.13978481292725
1998	9.09090900421143
2000	7.44680833816528
2002	0
2003	0
2004	2.46305418014526
2005	3.41463422775269
2006	6.34146356582642
2007	6.31067943572998
2008	6.31067943572998
2009	12.9186601638794
2010	10
2011	6.16113758087158
2012	9.00473976135254
2013	11.8483409881592
2014	8.65384578704834
2015	10
2016	7.61904764175415
2017	10
2018	9.5238094329834
2019	8.5714282989502
2020	7.61904764175415
2021	5.2380952835083
2022	5.18867921829224