Year	Number
1996	30.4347820281982
1998	34.7826080322266
2000	39.6739120483398
2002	44.8648643493652
2003	48.1081085205078
2004	38.8059692382813
2005	25
2006	29.9019603729248
2007	27.1844654083252
2008	27.6699028015137
2009	31.1004791259766
2010	33.0143547058105
2011	36.9668235778809
2012	36.9668235778809
2013	35.5450248718262
2014	36.538459777832
2015	41.4285697937012
2016	34.2857131958008
2017	32.8571434020996
2018	30.4761905670166
2019	30.9523811340332
2020	30.9523811340332
2021	24.761905670166
2022	15.5660381317139