Year	Number
1996	44.0217399597168
1998	41.3043479919434
2000	44.0217399597168
2002	57.2972984313965
2003	58.9189186096191
2004	57.2139320373535
2005	55.8823547363281
2006	58.8235282897949
2007	59.2233009338379
2008	60.6796112060547
2009	60.7655487060547
2010	60.2870826721191
2011	59.2417068481445
2012	62.0853080749512
2013	59.7156410217285
2014	56.25
2015	60
2016	62.3809509277344
2017	62.8571434020996
2018	64.2857131958008
2019	61.4285697937012
2020	59.523811340332
2021	57.1428565979004
2022	51.886791229248