Year	Number
1996	13.043478012085
1998	13.043478012085
2000	12.5
2002	12.972972869873
2003	18.9189186096191
2004	14.9253730773926
2005	22.0588226318359
2006	19.6078433990479
2007	16.5048542022705
2008	17.9611644744873
2009	16.7464122772217
2010	14.3540668487549
2011	18.0094795227051
2012	21.8009471893311
2013	22.748815536499
2014	12.5
2015	13.3333330154419
2016	12.380952835083
2017	14.7619047164917
2018	11.4285717010498
2019	10.9523811340332
2020	10.4761905670166
2021	11.4285717010498
2022	10.3773584365845