Year	Number
1996	70.4918060302734
1998	65.0273208618164
2000	61.2021865844727
2002	66.4864883422852
2003	63.7837829589844
2004	67.6616897583008
2005	65.1960754394531
2006	63.4146347045898
2007	58.737865447998
2008	59.2233009338379
2009	61.7224884033203
2010	60.2870826721191
2011	59.7156410217285
2012	53.554500579834
2013	55.9241714477539
2014	53.3653831481934
2015	46.1904754638672
2016	44.2857131958008
2017	48.5714302062988
2018	49.0476188659668
2019	50
2020	52.3809509277344
2021	55.238094329834
2022	55.6603775024414