Year	Number
1996	5.91397857666016
1998	3.74331545829773
2000	11.1702127456665
2002	8.46560859680176
2003	28.0423278808594
2004	25.1231517791748
2005	22.9268283843994
2006	31.7073173522949
2007	27.1844654083252
2008	27.1844654083252
2009	36.3636360168457
2010	34.2857131958008
2011	36.4928894042969
2012	30.8056869506836
2013	35.0710906982422
2014	31.25
2015	28.0952377319336
2016	22.8571434020996
2017	24.761905670166
2018	24.2857151031494
2019	25.7142848968506
2020	22.8571434020996
2021	22.8571434020996
2022	20.2830181121826