Year	Number
1996	56.8306007385254
1998	59.0163917541504
2000	56.2841529846191
2002	58.9189186096191
2003	60.5405387878418
2004	57.7114410400391
2005	54.9019622802734
2006	60.4878044128418
2007	60.1941757202148
2008	60.1941757202148
2009	61.2440185546875
2010	58.3732070922852
2011	59.2417068481445
2012	58.2938385009766
2013	55.4502372741699
2014	58.6538467407227
2015	57.1428565979004
2016	58.0952377319336
2017	55.7142868041992
2018	56.1904754638672
2019	55.238094329834
2020	54.761905670166
2021	58.0952377319336
2022	59.9056587219238