Year	Number
1996	14.6739130020142
1998	11.956521987915
2000	10.8695650100708
2002	16.2162170410156
2003	15.6756753921509
2004	13.9303483963013
2005	18.1372547149658
2006	8.33333301544189
2007	7.28155326843262
2008	13.5922327041626
2009	20.5741634368896
2010	21.0526313781738
2011	19.9052124023438
2012	4.7393364906311
2013	3.79146909713745
2014	3.8461537361145
2015	3.80952382087708
2016	3.80952382087708
2017	3.33333325386047
2018	3.33333325386047
2019	3.33333325386047
2020	3.33333325386047
2021	4.2857141494751
2022	3.77358484268188