Year	Number
1996	36.1809043884277
1998	32.5
2000	39.8009948730469
2002	36.8159217834473
2003	44.2786064147949
2004	37.5
2005	38.2775115966797
2006	44.9760780334473
2007	43.5406684875488
2008	39.4230766296387
2009	31.2796211242676
2010	33.1753540039063
2011	26.2910804748535
2012	27.2300472259521
2013	25.8215961456299
2014	9.61538505554199
2015	11.9047622680664
2016	8.09523773193359
2017	8.5714282989502
2018	9.5238094329834
2019	10.4761905670166
2020	12.8571424484253
2021	13.3333330154419
2022	15.5660381317139