Year	Number
1996	65.8291473388672
1998	64
2000	62.6865653991699
2002	58.2089538574219
2003	58.2089538574219
2004	58.6538467407227
2005	54.5454559326172
2006	51.6746406555176
2007	52.1531105041504
2008	51.4423065185547
2009	54.502368927002
2010	54.502368927002
2011	53.9906120300293
2012	53.9906120300293
2013	52.1126747131348
2014	61.538459777832
2015	58.5714302062988
2016	53.8095245361328
2017	52.8571434020996
2018	53.8095245361328
2019	53.3333320617676
2020	54.2857131958008
2021	52.8571434020996
2022	54.7169799804688