Year	Number
1996	70.7446823120117
1998	68.0851058959961
2000	72.4867706298828
2002	53.439151763916
2003	46.7336692810059
2004	49.029125213623
2005	51.4563102722168
2006	49.2753639221191
2007	48.7922706604004
2008	49.038459777832
2009	47.3933639526367
2010	45.0236968994141
2011	58.2938385009766
2012	62.0853080749512
2013	64.4549789428711
2014	58.0952377319336
2015	59.523811340332
2016	65.7142868041992
2017	69.0476226806641
2018	70.7547149658203
2019	71.698112487793
2020	67.4528274536133
2021	65.0943374633789
2022	72.6415100097656