Year	Number
1996	42.5531921386719
1998	38.2978706359863
2000	40.2116394042969
2002	60.3174591064453
2003	64.3216094970703
2004	54.8543701171875
2005	55.3398056030273
2006	59.4202880859375
2007	59.4202880859375
2008	55.288459777832
2009	52.6066360473633
2010	54.502368927002
2011	54.9763031005859
2012	59.7156410217285
2013	64.9289093017578
2014	59.523811340332
2015	59.523811340332
2016	61.9047622680664
2017	61.9047622680664
2018	58.4905662536621
2019	59.4339637756348
2020	64.1509399414063
2021	59.4339637756348
2022	54.2452812194824