Year	Number
1996	68.0851058959961
1998	69.1489334106445
2000	61.375659942627
2002	74.6031723022461
2003	70.3517608642578
2004	66.019416809082
2005	66.019416809082
2006	65.7004852294922
2007	69.5652160644531
2008	70.1923065185547
2009	63.9810409545898
2010	62.5592422485352
2011	63.5071105957031
2012	63.5071105957031
2013	64.4549789428711
2014	67.6190490722656
2015	65.2380981445313
2016	66.1904754638672
2017	64.2857131958008
2018	64.1509399414063
2019	60.3773574829102
2020	57.0754699707031
2021	58.0188674926758
2022	56.1320762634277