Year	Number
1996	13.978494644165
1998	26.7379684448242
2000	23.4042549133301
2002	30.1587295532227
2003	16.9312171936035
2004	19.2118225097656
2005	20.4878044128418
2006	6.82926845550537
2007	6.7961163520813
2008	10.6796112060547
2009	10.0478467941284
2010	10
2011	11.8483409881592
2012	12.3222751617432
2013	11.3744077682495
2014	7.692307472229
2015	11.9047622680664
2016	10
2017	10
2018	8.09523773193359
2019	7.14285707473755
2020	6.66666650772095
2021	4.2857141494751
2022	6.13207530975342