Year	Number
1996	48.0874328613281
1998	45.3551902770996
2000	54.6448097229004
2002	56.7567558288574
2003	56.2162170410156
2004	60.1990051269531
2005	59.3137245178223
2006	61.9512176513672
2007	55.3398056030273
2008	59.7087364196777
2009	60.7655487060547
2010	62.6794242858887
2011	60.6635055541992
2012	63.9810409545898
2013	64.4549789428711
2014	66.3461532592773
2015	57.6190490722656
2016	56.1904754638672
2017	60.476188659668
2018	59.523811340332
2019	58.0952377319336
2020	53.8095245361328
2021	58.0952377319336
2022	59.4339637756348