Year	Number
1996	59.5628433227539
1998	65.0273208618164
2000	66.1202163696289
2002	58.9189186096191
2003	60.5405387878418
2004	60.6965179443359
2005	60.294116973877
2006	60.9756088256836
2007	58.2524261474609
2008	57.2815551757813
2009	55.5023918151855
2010	62.6794242858887
2011	61.1374397277832
2012	59.2417068481445
2013	55.9241714477539
2014	57.6923065185547
2015	50.9523811340332
2016	47.1428565979004
2017	48.5714302062988
2018	41.4285697937012
2019	36.1904754638672
2020	19.5238094329834
2021	16.1904754638672
2022	14.6226415634155