Year	Number
1996	78.1420745849609
1998	78.6885223388672
2000	77.0491790771484
2002	74.594596862793
2003	75.6756744384766
2004	73.1343307495117
2005	69.6078414916992
2006	64.8780517578125
2007	58.737865447998
2008	62.6213607788086
2009	66.9856491088867
2010	67.464111328125
2011	65.8767776489258
2012	66.3507080078125
2013	68.7203826904297
2014	70.6730804443359
2015	70.476188659668
2016	71.9047622680664
2017	69.0476226806641
2018	67.6190490722656
2019	68.5714263916016
2020	65.2380981445313
2021	64.2857131958008
2022	66.9811325073242