Year	Number
1996	58.152172088623
1998	56.5217399597168
2000	64.6739120483398
2002	68.1081085205078
2003	68.1081085205078
2004	65.6716384887695
2005	70.0980377197266
2006	65.1960754394531
2007	66.9902877807617
2008	66.019416809082
2009	64.5932998657227
2010	59.8086128234863
2011	55.9241714477539
2012	55.9241714477539
2013	61.1374397277832
2014	49.519229888916
2015	52.8571434020996
2016	43.8095245361328
2017	47.1428565979004
2018	57.1428565979004
2019	60.9523811340332
2020	57.1428565979004
2021	53.3333320617676
2022	54.2452812194824