Year	Number
1996	59.0163917541504
1998	54.6448097229004
2000	53.5519142150879
2002	58.3783798217773
2003	58.9189186096191
2004	59.2039794921875
2005	59.8039207458496
2006	62.4390258789063
2007	54.3689308166504
2008	54.3689308166504
2009	59.8086128234863
2010	60.7655487060547
2011	56.3981056213379
2012	53.554500579834
2013	52.1327018737793
2014	47.5961532592773
2015	50.476188659668
2016	45.238094329834
2017	43.8095245361328
2018	48.5714302062988
2019	51.4285697937012
2020	45.7142868041992
2021	49.523811340332
2022	57.5471687316895