Year	Number
1996	59.1397857666016
1998	59.8930473327637
2000	59.5744667053223
2002	60.3174591064453
2003	61.375659942627
2004	59.6059112548828
2005	62.926830291748
2006	60.4878044128418
2007	54.8543701171875
2008	53.3980598449707
2009	54.5454559326172
2010	56.1904754638672
2011	55.9241714477539
2012	56.3981056213379
2013	55.9241714477539
2014	50.480770111084
2015	60
2016	60.9523811340332
2017	57.6190490722656
2018	56.6666679382324
2019	55.7142868041992
2020	56.6666679382324
2021	58.0952377319336
2022	58.0188674926758