Year	Number
1996	53.0054626464844
1998	53.0054626464844
2000	52.4590148925781
2002	47.5675659179688
2003	51.3513526916504
2004	35.3233833312988
2005	45.0980377197266
2006	20.4878044128418
2007	16.990291595459
2008	16.019416809082
2009	20.0956935882568
2010	17.2248802185059
2011	17.0616111755371
2012	20.3791465759277
2013	16.1137447357178
2014	16.3461532592773
2015	13.8095235824585
2016	20
2017	20.9523811340332
2018	19.5238094329834
2019	30.9523811340332
2020	17.619047164917
2021	22.8571434020996
2022	25.4716987609863