Year	Number
1996	65.5
1998	65.1741256713867
2000	65.1741256713867
2002	67.164176940918
2003	67.164176940918
2004	68.2692337036133
2005	67.3076934814453
2006	67.788459777832
2007	67.788459777832
2008	67.3076934814453
2009	68.2464447021484
2010	68.7203826904297
2011	67.1361465454102
2012	69.4835662841797
2013	69.9530487060547
2014	70.9359588623047
2015	71.9211807250977
2016	71.4285736083984
2017	71.9211807250977
2018	70.3883514404297
2019	71.4975814819336
2020	72.4637680053711
2021	73.4299545288086
2022	75.3623199462891