Year	Number
1996	68.5
1998	69.1542282104492
2000	71.1442794799805
2002	71.1442794799805
2003	66.6666641235352
2004	67.3076934814453
2005	64.9038467407227
2006	68.75
2007	71.1538467407227
2008	70.6730804443359
2009	68.7203826904297
2010	68.7203826904297
2011	67.6056365966797
2012	68.0751190185547
2013	67.1361465454102
2014	70.9359588623047
2015	70.9359588623047
2016	67.4876861572266
2017	66.5024642944336
2018	64.5631103515625
2019	68.1159439086914
2020	68.1159439086914
2021	66.1835784912109
2022	65.7004852294922