Year	Number
1996	2.15053772926331
1998	0
2000	11.702127456665
2002	12.6984128952026
2003	7.93650770187378
2004	6.89655160903931
2005	10.731707572937
2006	27.3170738220215
2007	37.3786392211914
2008	22.8155345916748
2009	32.0574150085449
2010	33.3333320617676
2011	26.0663509368896
2012	32.7014236450195
2013	27.014217376709
2014	24.519229888916
2015	29.5238094329834
2016	26.1904754638672
2017	27.619047164917
2018	18.5714282989502
2019	17.619047164917
2020	20
2021	19.0476188659668
2022	20.2830181121826