Year	Number
1996	78.260871887207
1998	83.1521759033203
2000	85.3260879516602
2002	87.5675659179688
2003	83.2432403564453
2004	81.592041015625
2005	79.9019622802734
2006	80.3921585083008
2007	81.5533981323242
2008	81.5533981323242
2009	74.1626815795898
2010	67.9425811767578
2011	67.7725143432617
2012	63.9810409545898
2013	58.2938385009766
2014	56.730770111084
2015	57.6190490722656
2016	63.8095245361328
2017	59.0476188659668
2018	61.9047622680664
2019	50
2020	52.3809509277344
2021	54.2857131958008
2022	47.1698112487793