Year	Number
1996	28.1914901733398
1998	27.659574508667
2000	29.100528717041
2002	17.4603176116943
2003	19.0954780578613
2004	15.5339803695679
2005	11.1650485992432
2006	8.21256065368652
2007	3.38164258003235
2008	1.92307686805725
2009	1.89573454856873
2010	1.89573454856873
2011	1.89573454856873
2012	1.89573454856873
2013	1.89573454856873
2014	5.2380952835083
2015	4.2857141494751
2016	4.2857141494751
2017	3.80952382087708
2018	5.18867921829224
2019	5.18867921829224
2020	10.3773584365845
2021	10.3773584365845
2022	8.49056625366211