Year	Number
1996	52.6595726013184
1998	63.2978706359863
2000	73.0158767700195
2002	42.3280410766602
2003	54.773868560791
2004	56.7961158752441
2005	55.3398056030273
2006	58.4541053771973
2007	68.1159439086914
2008	62.019229888916
2009	55.4502372741699
2010	61.1374397277832
2011	56.8720397949219
2012	53.0805702209473
2013	52.6066360473633
2014	51.4285697937012
2015	39.523811340332
2016	45.238094329834
2017	44.761905670166
2018	51.886791229248
2019	54.7169799804688
2020	54.2452812194824
2021	54.2452812194824
2022	54.2452812194824