Year	Number
1996	68.3417053222656
1998	69.5
2000	64.1791076660156
2002	64.6766204833984
2003	64.6766204833984
2004	58.6538467407227
2005	56.4593315124512
2006	53.5885162353516
2007	52.6315803527832
2008	54.3269233703613
2009	54.9763031005859
2010	53.0805702209473
2011	53.9906120300293
2012	54.4600944519043
2013	55.3990592956543
2014	60.5769233703613
2015	58.5714302062988
2016	56.6666679382324
2017	52.3809509277344
2018	50.476188659668
2019	49.0476188659668
2020	44.761905670166
2021	46.6666679382324
2022	43.8679237365723