Year	Number
1996	62.5
1998	65.1741256713867
2000	65.6716384887695
2002	62.6865653991699
2003	65.1741256713867
2004	67.3076934814453
2005	64.9038467407227
2006	68.75
2007	67.788459777832
2008	67.3076934814453
2009	67.7725143432617
2010	65.4028472900391
2011	65.7276992797852
2012	68.0751190185547
2013	69.9530487060547
2014	70.4433517456055
2015	68.9655151367188
2016	67.4876861572266
2017	66.5024642944336
2018	64.5631103515625
2019	64.2512054443359
2020	60.8695640563965
2021	60.386474609375
2022	59.4202880859375