Year	Number
1996	30.6451606750488
1998	32.6203193664551
2000	27.1276588439941
2002	26.4550266265869
2003	20.1058197021484
2004	19.2118225097656
2005	19.0243911743164
2006	11.2195119857788
2007	16.5048542022705
2008	15.5339803695679
2009	17.7033500671387
2010	16.1904754638672
2011	18.9573459625244
2012	23.6966819763184
2013	34.1232223510742
2014	29.8076915740967
2015	28.0952377319336
2016	26.6666660308838
2017	26.1904754638672
2018	24.2857151031494
2019	23.3333339691162
2020	25.7142848968506
2021	24.2857151031494
2022	23.5849056243896