Year	Number
1996	31.9148941040039
1998	25
2000	40.2116394042969
2002	40.2116394042969
2003	39.1959800720215
2004	48.5436897277832
2005	48.5436897277832
2006	48.3091773986816
2007	43.961353302002
2008	49.038459777832
2009	40.7582931518555
2010	42.6540298461914
2011	49.2891006469727
2012	56.3981056213379
2013	56.8720397949219
2014	58.5714302062988
2015	59.0476188659668
2016	64.7619018554688
2017	62.8571434020996
2018	62.2641525268555
2019	58.0188674926758
2020	52.8301887512207
2021	54.7169799804688
2022	56.6037750244141